Discuss
menu
search
person
Login
Register
search
edit
Ask a Question
Discuss
All Activity
Q&A
Questions
Hot!
Unanswered
Tags
Users
Ask a Question
Is current from a battery AC or DC?
asked
Mar 14, 2018
by
anonymous
Is current from a battery AC or DC?
current
battery
ac
dc
thumb_up_alt
0
like
thumb_down_alt
0
dislike
104
views
Please
log in
or
register
to add a comment.
Please
log in
or
register
to answer this question.
2
Answers
answered
Mar 14, 2018
by
anonymous
edited
Aug 8, 2018
by
anonymous
Current from battery is DC. We can not store AC.
thumb_up_alt
0
like
thumb_down_alt
0
dislike
commented
Feb 22, 2020
by
Peter Kithale
It is DC because AC current flows with presence of high voltage
thumb_up_alt
0
thumb_down_alt
0
Please
log in
or
register
to add a comment.
answered
Aug 10, 2018
by
FARHANA BEGUM
The current from the battery is DC
thumb_up_alt
0
like
thumb_down_alt
0
dislike
Please
log in
or
register
to add a comment.
← Prev Question
Next Question →
Related questions
asked
Mar 14, 2018
by
anonymous
Do cell phones use AC or DC current?
Do cell phones use AC or DC current?
Last answer:
DC of course.
cell
phones
use
ac
dc
current
thumb_up_alt
0
like
thumb_down_alt
0
dislike
177
views
2
answers
asked
Apr 29, 2018
by
anonymous
The current flow in a battery is due to ______
The current flow in a battery is due to ______ A) movement of ions B) movement of protons C) movement of holes D) movement of neutrons
Last answer:
The current flow in a battery is due to movement of ions
current
flow
battery
thumb_up_alt
0
like
thumb_down_alt
0
dislike
74
views
1
answer
asked
Mar 14, 2018
by
anonymous
Can you make alternating current through a battery?
Can you make alternating current through a battery?
Last answer:
Yes, we can make AC through a battery using an inverter.
alternating
current
battery
thumb_up_alt
0
like
thumb_down_alt
0
dislike
69
views
1
answer
asked
Jun 29, 2019
by
anonymous
Is the power line voltage available in our homes a dc or an ac voltage?
Is the power line voltage available in our homes a dc or an ac voltage?
Last answer:
The power line voltage available in our homes is AC. Mobile dwellings are the most commonly DC-supplied homes and even then they tend to include AC supply for heavier loads.
is
the
power
line
voltage
available
in
our
homes
a
dc
or
an
ac
thumb_up_alt
0
like
thumb_down_alt
0
dislike
5.0k
views
1
answer
asked
Aug 28, 2019
by
anonymous
Which is more dangerous AC or DC and why ?
Which is more dangerous AC or DC and why ?
Last answer:
Dc is more dangerous than Ac because in Ac the voltage will varies but in dc the constant voltage
dangerous
ac
dc
thumb_up_alt
0
like
thumb_down_alt
0
dislike
115
views
2
answers
asked
Jun 29, 2019
by
anonymous
Describe the difference between direct and alternating current.
Describe the difference between direct and alternating current.
Last answer:
Direct current is the flow of electricity or charge in one direction.. Alternative current is the flow of charge that doesn't flow in one direction.
ac
dc
difference
between
direct
alternating
current
thumb_up_alt
0
like
thumb_down_alt
0
dislike
5.0k
views
4
answers
asked
Mar 10, 2018
by
anonymous
Is electricity generated in AC or DC?
Is electricity generated in AC or DC?
Last answer:
Electricity is generated in AC.
electricity
generated
ac
dc
thumb_up_alt
0
like
thumb_down_alt
0
dislike
99
views
1
answer
asked
Mar 10, 2018
by
anonymous
Is it AC or DC electricity in the home?
Is it AC or DC electricity in the home?
Last answer:
Obviously its A.C
ac
dc
electricity
home
thumb_up_alt
1
like
thumb_down_alt
0
dislike
160
views
4
answers
asked
Sep 9, 2017
by
anonymous
is induction motor ac or dc?
Last answer:
Induction motor is a AC motor it is also known as asynchronous motor .
induction
motor
dc
ac
thumb_up_alt
1
like
thumb_down_alt
0
dislike
73
views
1
answer
asked
Aug 21, 2019
by
anonymous
when charging a battery we use a DC supply but not an AC supply. Why ?
when charging a battery we use a DC supply but not an AC supply. Why ?
Last answer:
When power is supplied to the battery, electrolyte inside the battery is divided into positive and negative ions, where ions with similar pole is gained in one side. This reactionʼs flow coincides with direct current.
charging
battery
thumb_up_alt
0
like
thumb_down_alt
0
dislike
78
views
1
answer
asked
Apr 26, 2020
by
anonymous
What is the advantage of AC over DC electrical transmission?
What is the advantage of AC over DC electrical transmission?
advantage
ac
over
dc
electrical
transmission
thumb_up_alt
0
like
thumb_down_alt
0
dislike
62
views
0
answers
asked
Aug 28, 2019
by
anonymous
Why is AC considered more efficient than DC?
Why is AC considered more efficient than DC?
Last answer:
Ac is more efficient than dc because it is easy to maintain and change the voltage of ac for transmission and distribution purpose. Plant cost of ac transmission is much lower compared to dc transmission. When fault occurs it is easy to interrupt ac supply.
ac
considered
efficient
dc
thumb_up_alt
0
like
thumb_down_alt
0
dislike
83
views
1
answer
asked
Aug 15, 2019
by
anonymous
What is the conversion between. AC to AC ? DC to DC? AC to DC? DC to AC ?
What is the conversion between. AC to AC ? DC to DC? AC to DC? DC to AC ?
Last answer:
1.ac to ac is regulation 2.dc to dc is chopper 3.ac to dc is rectifier 4.dc to ac is inverter
dc
ac
thumb_up_alt
0
like
thumb_down_alt
0
dislike
63
views
1
answer
asked
May 8, 2018
by
anonymous
The main advantage of AC over DC is:
The main advantage of AC over DC is: (A) Conversion flexibility from one voltage level to other (B) AC can be easily converted into DC by using a rectifier (C) AC is easy to maintain & can be easily distributed at long distances (D) All of the above
Last answer:
Ac is easy to maintain and ac can be easily converted to dc by rectifier .There is no commutator for conversion in ac that's why ac machines are weight less and more efficiency.ac machines occupy less space than dc .
main
advantage
ac
over
dc
thumb_up_alt
0
like
thumb_down_alt
0
dislike
111
views
2
answers
asked
Mar 14, 2018
by
anonymous
What is the direction of an AC current?
What is the direction of an AC current?
Last answer:
The magnitude and direction of alternating current is changes with respect to time. So for half cycle it is positive and for next half cycle it is negative.
direction
ac
current
thumb_up_alt
0
like
thumb_down_alt
0
dislike
2.5k
views
2
answers
asked
Mar 19, 2018
by
anonymous
How is a thyristor used to convert AC to DC?
How is a thyristor used to convert AC to DC?
thyristor
used
convert
ac
dc
thumb_up_alt
0
like
thumb_down_alt
0
dislike
89
views
0
answers
asked
Sep 3, 2019
by
anonymous
Why are DC motors used in trains and not AC motors ?
Why are DC motors used in trains and not AC motors ?
Last answer:
The reason is torque. torque is inversely proportional to speed..i.e when th knowe train comes to rest position to motion.. initial speed is zero..so it requires high starting torque for ... current will flow through field and armature coils then maximum torque is available at the intial condition.
dc
motors
trains
ac
thumb_up_alt
0
like
thumb_down_alt
0
dislike
138
views
1
answer
asked
Aug 8, 2018
by
anonymous
Distinguish between AC and DC.
Distinguish between AC and DC.
Last answer:
Particulars Direct Current Alternating Current Definition It is the current whose magnitude and direction do not change with respect to time. It is the current whose ... system, electroplating, Battery charging, Traction. AC machines, Domestic and industrial supply.
difference
between
ac
dc
thumb_up_alt
0
like
thumb_down_alt
0
dislike
414
views
2
answers
asked
Apr 29, 2018
by
anonymous
Which of the following motors can run on both AC and DC?
Which of the following motors can run on both AC and DC? A) Universal motor B) Dual wattage motor C) Flexible motor D) All the above
Last answer:
Which of the following motors can run on both AC and DC? A) Universal motor B) Dual wattage motor C) Flexible motor D) All the above
motors
ac
dc
thumb_up_alt
0
like
thumb_down_alt
0
dislike
113
views
1
answer
asked
Feb 24, 2018
by
Amit Sharma
How IGBT convert DC into AC in solar inverter?
Last answer:
Igbt alone cant convert dc to ac. igbt half bridge or full bridge or three phase topology could be used to convert dc to ac. also igbt gates should be driven by microcontroller or pwm/spwm gate driving signals ... e4(-) and g4 c2e1 and c4e3 pins are AC output pins. its name is igbt inverter.
ac
dc
convert
transformer
solar
inverter
thumb_up_alt
0
like
thumb_down_alt
0
dislike
162
views
1
answer
asked
Oct 18, 2017
by
anonymous
are AC and DC resistances same?
are AC and DC resistances same?
Last answer:
Resistance is the ability of a circuit or element (which is called resistor) to oppose current. Examples of Resistors with the ability of high resistance are Wood, Air, Mica, Glass, Rubber, Tungsten ... constant. Therefore, only the original resistance of wire comes into play. they are not the same
ac
dc
resistances
thumb_up_alt
0
like
thumb_down_alt
0
dislike
60
views
1
answer
asked
Nov 22, 2019
by
anonymous
Alternating current (AC)
Alternating current (AC)
Last answer:
AC stands for Alternating Current meaning voltage or current that changes polarity or direction respectively over time. An Alternating Current (AC) is an electric current whose magnitude ... energy are known as alternators and are simpler construction than DC electromechanical generators.
alternating
current
ac
english
electrical
engineering
thumb_up_alt
0
like
thumb_down_alt
0
dislike
148
views
2
answers
asked
Mar 14, 2018
by
anonymous
How does AC current change direction?
How does AC current change direction?
Last answer:
This is because the angle at which the magnetic fields cuts across a winding changes its poles thus current has to change dirention .
ac
current
change
direction
thumb_up_alt
0
like
thumb_down_alt
0
dislike
67
views
1
answer
asked
Mar 11, 2018
by
anonymous
Why do we use AC current in our homes?
Why do we use AC current in our homes?
Last answer:
We used it for cooking rice, For washing clothes and for lights in the house.
use
ac
current
homes
thumb_up_alt
0
like
thumb_down_alt
0
dislike
174
views
3
answers
asked
Aug 11, 2018
by
nbattack
is it DC better than AC to transmit? explain it.
Do you think is DC better than AC to transmit energy?
Last answer:
In Long distance DC transmission will be better in cost. It requires more equipments for flexiblity In short distance AC transmission is better in cost. It is more Flexible
ac
dc
electricity
hvdc
facts
powersystems
thumb_up_alt
0
like
thumb_down_alt
0
dislike
447
views
2
answers
asked
Mar 15, 2018
by
anonymous
What is the difference between an AC and DC generator?
What is the difference between an AC and DC generator?
Last answer:
The generator which generates DC voltage is called DC generator and generator which generates AC voltage is called AC generator (or) Alternator. In DC generator armature is rotated and field winding ... generator. A DC generator can generate low voltages but an AC generator can generate upto 11kv.
difference
between
ac
dc
generator
thumb_up_alt
0
like
thumb_down_alt
0
dislike
282
views
1
answer
asked
Mar 10, 2018
by
anonymous
What is the difference between AC and DC drive?
What is the difference between AC and DC drive?
Last answer:
AC means alternating current It's Frequency is 50hz Dc means direct current ItsI Frequency is 0Hz
difference
between
ac
dc
drive
thumb_up_alt
0
like
thumb_down_alt
0
dislike
132
views
1
answer
asked
Mar 10, 2018
by
anonymous
What is the use of AC and DC drives?
What is the use of AC and DC drives?
use
ac
dc
drives
thumb_up_alt
0
like
thumb_down_alt
0
dislike
70
views
0
answers
asked
May 7, 2020
by
anonymous
State the modification to be done in dc series motor to work satisfactorily as ac series motor. State applications of ac series motor.
State the modification to be done in dc series motor to work satisfactorily as ac series motor. State applications of ac series motor.
Last answer:
Modifications are necessary in a dc series motor so that it operates satisfactorily on ac supply. The modifications are as follows: 1) AC series motor is built with a few field turns as ... and grinders 5) High speed vacuum cleaners 6) Sewing machines 7) Food processors 8) Drilling machine
state
the
modification
to
be
done
in
dc
series
motor
work
satisfactorily
as
ac
applications
of
thumb_up_alt
0
like
thumb_down_alt
0
dislike
77
views
1
answer
asked
May 3, 2020
by
anonymous
Compare the AC and DC Arc lamps.
Compare the AC and DC Arc lamps.
Last answer:
AC Arc Lamp DC Arc Lamp Cross section area of electrode is same Cross section area of electrode is positive rod is twice that of negative rod Series inductor is used for stability ... supply is used for DC arc lamp Luminous efficiency is less Luminous efficiency is high
compare
the
ac
and
dc
arc
lamps
thumb_up_alt
0
like
thumb_down_alt
0
dislike
109
views
1
answer
asked
Jul 25, 2019
by
anonymous
How to convert 12v dc to 12v ac
convert
ac
dc
thumb_up_alt
0
like
thumb_down_alt
0
dislike
2.6k
views
0
answers
asked
Dec 9, 2017
by
anonymous
Can transformer convert AC to DC?
Can transformer convert AC to DC?
Last answer:
No, Transformer cannot convert AC to DC.
transformer
convert
ac
dc
thumb_up_alt
4
like
thumb_down_alt
1
dislike
2.9k
views
9
answers
asked
Sep 13, 2017
by
anonymous
can rectifier convert dc to ac?
Last answer:
NO IT ONLY CONVERT FROM AC TO DC BECAUSE DIODE WHICH ARE USED IN IT, ARE UNIDIRECTIONAL.
dc
rectifier
ac
thumb_up_alt
0
like
thumb_down_alt
0
dislike
125
views
2
answers
asked
Sep 13, 2017
by
anonymous
how does rectifier convert ac to dc?
Last answer:
IT CHANGES NEGATIVE CYCLE IN TO POSITIVE CYCLE FROM AC CURRENT.
rectifier
ac
dc
thumb_up_alt
0
like
thumb_down_alt
0
dislike
116
views
2
answers
asked
May 3, 2018
by
anonymous
A 200 V dc shunt motor is running at 1000 rpm and drawing a current of 10 A. Its armature winding resistance
A 200 V dc shunt motor is running at 1000 rpm and drawing a current of 10 A. Its armature winding resistance is 2 Ohm. It. is braked by plugging. The resistance to be connected in series with armature to restrict armature current to 10 A, is
Last answer:
A 200 V dc shunt motor is running at 1000 rpm and drawing a current of 10 A. Its armature winding resistance is 2 Ohm. It. is braked by plugging. The resistance to be connected in series with armature to restrict armature current to 10 A, is 36 Ohm
dc
shunt
motor
running
current
armature
winding
resistance
thumb_up_alt
0
like
thumb_down_alt
0
dislike
169
views
1
answer
asked
Apr 30, 2018
by
anonymous
The eddy current loss in a dc generator is 400 W at 40 Hz frequency of reversal and constant flux density.
The eddy current loss in a dc generator is 400 W at 40 Hz frequency of reversal and constant flux density. When frequency is increased to 50 Hz., eddy current loss is : (A) 256 W (B) 320 W (C) 500 W (D) 625 W
Last answer:
The eddy current loss in a dc generator is 400 W at 40 Hz frequency of reversal and constant flux density. When frequency is increased to 50 Hz., eddy current loss is : 625 W
eddy
current
loss
dc
generator
thumb_up_alt
0
like
thumb_down_alt
0
dislike
77
views
1
answer
asked
Apr 29, 2018
by
anonymous
A 3 -phase, fully controlled, converter is feeding power into a DC load at a constant current of 150 A, the rms
A 3 -phase, fully controlled, converter is feeding power into a DC load at a constant current of 150 A, the rms value of the current flowing through each thyristor of the converter is
Last answer:
A 3 -phase, fully controlled, converter is feeding power into a DC load at a constant current of 150 A, the rms value of the current flowing through each thyristor of the converter is 150/√3
fully
controlled
converter
feeding
power
dc
load
constant
current
thumb_up_alt
0
like
thumb_down_alt
0
dislike
168
views
1
answer
asked
Nov 22, 2019
by
anonymous
Direct Current (DC)
Direct Current (DC) Next Topic : Alternating current (AC)
Last answer:
Direct Current (DC) is the unidirectional electric current. Uni meaning is one. And the flow of charge in same direction. We know that conventional current flow from positive terminal of battery to ... The magnitude of DC may constant or vary but direction do not change with respect to time.
direct
current
dc
electrical
engineering
thumb_up_alt
0
like
thumb_down_alt
0
dislike
199
views
3
answers
asked
Mar 24, 2018
by
anonymous
The r.m.s. value of a sinusoidal A.C. current is equal to its value at an angle of______degrees.
The r.m.s. value of a sinusoidal A.C. current is equal to its value at an angle of______degrees.
Last answer:
The r.m.s. value of a sinusoidal A.C. current is equal to its value at an angle of 45 degrees.
rms
sinusoidal
ac
current
value
angle
thumb_up_alt
1
like
thumb_down_alt
0
dislike
468
views
1
answer
asked
Aug 8, 2019
by
anonymous
Changeover from D.C to A.C
Changeover from D.C to A.C
Last answer:
In later half of eighties, in nineteenth century, it was proposed to have a power system with 3- phase, 50 Hz A.C generation, transmission and distribution networks. Once a.c system was adopted, transmission of ... favor of A.C supply system own the debate on switching over from D.C to A.C system.
changeover
dc
ac
thumb_up_alt
0
like
thumb_down_alt
0
dislike
2.4k
views
1
answer
asked
Mar 8, 2018
by
anonymous
How to make power bank from laptop battery cells?
How to make power bank from laptop battery cells?
Last answer:
You can make the power bank from laptop battery cells. Things you need to make power bank from laptop battery cells: Laptop battery cells (about 6 in parallel) Universal Dual USB 5V 1A 2.1A New Hot ... If you have any doubt ask it. Thanks...
make
power
bank
laptop
battery
cells
thumb_up_alt
0
like
thumb_down_alt
0
dislike
213
views
1
answer
asked
Aug 24, 2019
by
anonymous
A battery is known to have an EMF of 5.0V but when a certain voltmeter is connected to it the reading is 4.9V.
A battery is known to have an EMF of 5.0V but when a certain voltmeter is connected to it the reading is 4.9V. The battery can deliver a current of 0.40A when connected to a resistance of 12ohms. What is the resistance of the voltmeter?
battery
thumb_up_alt
0
like
thumb_down_alt
0
dislike
63
views
0
answers
asked
Apr 29, 2018
by
anonymous
In a battery, the difference between the no-load voltage and the measured voltage output is called ________
In a battery, the difference between the no-load voltage and the measured voltage output is called ________ A) Internal voltage B) Internal resistance C) External resistance D) All the above
Last answer:
In a battery, the difference between the no-load voltage and the measured voltage output is called Internal resistance
battery
no-load
voltage
measured
output
thumb_up_alt
0
like
thumb_down_alt
0
dislike
78
views
1
answer
asked
Jun 26, 2019
by
Aavula siseendri
How do we prepare a battery?
battery
thumb_up_alt
0
like
thumb_down_alt
0
dislike
51
views
0
answers
asked
Mar 20, 2018
by
anonymous
In a D.C. shunt motor, under the conditions of maximum power, the current in the armature will be?
Last answer:
In a D.C. shunt motor, under the conditions of maximum power, the current in the armature will be more than full-load current.
dc
shunt
motor
conditions
maximum
power
current
armature
thumb_up_alt
0
like
thumb_down_alt
0
dislike
169
views
1
answer
asked
Oct 3, 2017
by
anonymous
what is the difference between capacitor and battery ?
what is the difference between capacitor and battery ?
Last answer:
A capacitor stores power but in very small quantitys and work in D/C and A/C circuits and it needs a power source from wich it gets the power it stores and a battery also stores power but in much larger quantitys measured in Amp/Hours
capacitor
battery
difference
thumb_up_alt
3
like
thumb_down_alt
0
dislike
86
views
2
answers
asked
Mar 21, 2018
by
anonymous
It is required to measure the true open circuit e.m.f. of a battery. The best device is?
Last answer:
It is required to measure the true open circuit e.m.f. of a battery. The best device is D.C. potentiometer.
measure
open
circuit
emf
battery
thumb_up_alt
0
like
thumb_down_alt
0
dislike
105
views
1
answer
asked
Sep 4, 2018
by
anonymous
List out the precautions to be taken while charging of lead- acid battery
List out the precautions to be taken while charging of lead- acid battery
Last answer:
precautions to be taken while charging of lead- acid battery: 1) Never keep the battery in the circuit and connect for external charging if it is not designed so. 2) While disconnecting / removing a ... tools etc on batteries. 10) Do not splash any liquids on the batteries, near the charger etc.
precautions
charging
lead-acid
battery
thumb_up_alt
0
like
thumb_down_alt
0
dislike
55
views
1
answer
asked
Sep 4, 2018
by
anonymous
Explain the maintenance of lead acid battery.
Explain the maintenance of lead acid battery.
Last answer:
Maintenance of lead acid battery: 1) Keep the container surface dry by using dry cloths. 2) Tighten the terminal connections. 3) Battery should not be discharged below a minimum voltage. 4) Never keep battery ... -container embed { position: absolute; top: 0; left: 0; width: 100%; height: 100%; }
lead
acid
battery
maintenance
thumb_up_alt
0
like
thumb_down_alt
0
dislike
45
views
1
answer
asked
Apr 30, 2018
by
anonymous
In lead acid battery the density of acid indicates the
In lead acid battery the density of acid indicates the (1) charge of the battery (2) level of acid (3) e.m.f of the battery (4) damage of the plates
Last answer:
In lead acid battery the density of acid indicates the charge of the battery
lead
acid
battery
density
thumb_up_alt
0
like
thumb_down_alt
0
dislike
57
views
1
answer
Install Now
...