What is the direction of an AC current?

asked Mar 14, 2018 by anonymous

What is the direction of an AC current?

2.5k views

Please log in or register to answer this question.

2 Answers

answered Aug 7, 2018 by gabriel orina

It flows both foward direction and backward direction at a given frequecy.

answered Aug 8, 2018 by anonymous

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.

← Prev Question Next Question →

Related questions

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 .

0 like 0 dislike

68 views 1 answer

asked Mar 14, 2018 by anonymous

What is the direction of flow of electric current in an electric circuit?

What is the direction of flow of electric current in an electric circuit?

Last answer: It flows from anode to cathode (direction of holes flow)

0 like 0 dislike

144 views 1 answer

asked Mar 14, 2018 by anonymous

What happens when you reverse the direction of the current in an electromagnet?

What happens when you reverse the direction of the current in an electromagnet?

Last answer: When you reverse current direction in an electromagnet, the magnetic poles will also change.

0 like 0 dislike

81 views 1 answer

asked Apr 28, 2018 by anonymous

The direction of rotation of an inverter fed 3-phase ac motor is reversed by

The direction of rotation of an inverter fed 3-phase ac motor is reversed by (A) a mechanical reversing switch (B) reversing the input dc link voltage (C) operating the inverter as a rectifier (D) changing the sequence of switching

Last answer: The direction of rotation of an inverter fed 3-phase ac motor is reversed by changing the sequence of switching

0 like 0 dislike

119 views 1 answer

asked Mar 14, 2018 by anonymous

What is the direction of the induced current?

What is the direction of the induced current?

0 like 0 dislike

66 views 0 answers

asked Mar 14, 2018 by anonymous

What is the direction of flow of current?

What is the direction of flow of current?

Last answer: Current flows from anode to cathode(opposite direction to flow of electrons)

0 like 0 dislike

70 views 1 answer

asked Mar 14, 2018 by anonymous

What is the direction of the conventional current flow?

What is the direction of the conventional current flow?

Last answer: The conventional current flow in opposite direction of flow of electrons. The electrons flow from negative terminal of battery to positive terminal of battery. And conventional current flow from positive terminal of battery to negative terminal of battery.

0 like 0 dislike

75 views 1 answer

asked Oct 3, 2017 by anonymous

why current flows in opposite direction of electrons ?

why current flows in opposite direction of electrons?

Last answer: Hi team, the current flow is nothing but flow of electrons But the conventional direction I'd opposite to actual current flow . ..

1 like 0 dislike

90 views 1 answer

asked Mar 14, 2018 by anonymous

Is current from a battery AC or DC?

Is current from a battery AC or DC?

Last answer: The current from the battery is DC

0 like 0 dislike

104 views 2 answers

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.

0 like 0 dislike

148 views 2 answers

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.

0 like 0 dislike

179 views 2 answers

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.

0 like 0 dislike

174 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.

1 like 0 dislike

490 views 1 answer

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.

0 like 0 dislike

5.1k views 4 answers

asked Mar 14, 2018 by anonymous

What is the direction of the induced electric field?

What is the direction of the induced electric field?

Last answer: It is in opposite direction to the one that produced it.

0 like 0 dislike

46 views 1 answer

asked Mar 14, 2018 by anonymous

What is the direction of the electric field?

What is the direction of the electric field?

Last answer: Electric field is at right angle widh flow of current (right hand rule).

0 like 0 dislike

100 views 1 answer

asked Mar 14, 2018 by anonymous

What is the direction of the flow of electrons?

What is the direction of the flow of electrons?

Last answer: Electrons flow cathode to anode or in an oposite direction of convection current flow or holes.

0 like 0 dislike

91 views 1 answer

asked Mar 20, 2018 by anonymous

The direction of rotation of universal motor can be reversed the by reversing the flow of current through?

Last answer: The direction of rotation of universal motor can be reversed the by reversing the flow of current through either armature winding or field winding.

0 like 0 dislike

104 views 1 answer

asked Mar 20, 2018 by anonymous

The direction of rotation of an hysteresis motor is determined by?

Last answer: The direction of rotation of an hysteresis motor is determined by position of shaded pole with respect to main pole.

0 like 0 dislike

132 views 1 answer

asked Mar 15, 2018 by anonymous

What is the direction of flow when charging a capacitor?

What is the direction of flow when charging a capacitor?

0 like 0 dislike

60 views 0 answers

asked Apr 29, 2018 by anonymous

In a single-phase induction motor, the operating direction is determined by the ________

In a single-phase induction motor, the operating direction is determined by the ________ A) Rotor B) Stator C) Starting circuit D) None of these

Last answer: In a single-phase induction motor, the operating direction is determined by the Starting circuit

0 like 0 dislike

78 views 1 answer

asked Sep 20, 2017 by anonymous

can a DIAC conduct in both direction?

Last answer: Yes DIAC can conduct in both direction.

1 like 0 dislike

51 views 1 answer

asked Dec 16, 2017 by anonymous

What is the purpose of a capacitor in an AC circuit?

What is the purpose of a capacitor in an AC circuit?

Last answer: Every AC supply is not ideal AC it contains DC component so to provide restriction to DC component in supply we have to use Capacitor

3 like 0 dislike

154 views 1 answer

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.

0 like 0 dislike

284 views 1 answer

asked Mar 20, 2018 by anonymous

In case of a shaded pole motor the direction of rotation of the motor is?

Last answer: In case of a shaded pole motor the direction of rotation of the motor is from main pole to shaded pole.

0 like 0 dislike

113 views 1 answer

asked May 1, 2018 by anonymous

In a synchronous machine, if the field flux axis ahead of the armature field axis in the direction of rotation,

In a synchronous machine, if the field flux axis ahead of the armature field axis in the direction of rotation, the machine is operating as (1) synchronous motor (2) synchronous generator (3) asynchronous motor (4) asynchronous generator

Last answer: In a synchronous machine, if the field flux axis ahead of the armature field axis in the direction of rotation, the machine is operating as synchronous generator

0 like 0 dislike

322 views 1 answer

asked Mar 20, 2018 by anonymous

The direction of rotation of a D.C. series motor can be changed by?

Last answer: The direction of rotation of a D.C. series motor can be changed by interchanging field terminals.

0 like 0 dislike

75 views 1 answer

asked Mar 20, 2018 by anonymous

Direction of rotation of a split phase motor can be reversed by reversing the connection of?

Last answer: Direction of rotation of a split phase motor can be reversed by reversing the connection of either running winding or starting winding.

0 like 0 dislike

146 views 1 answer

asked Mar 18, 2018 by anonymous

How can we reverse the direction of rotation of synchronous motor?

How can we reverse the direction of rotation of synchronous motor?

Last answer: By reversing supply phase sequence we can reverse the direction of rotation of synchronous motor.

0 like 0 dislike

194 views 1 answer

asked Mar 20, 2018 by anonymous

In repulsion motor direction of rotation of motor?

Last answer: In repulsion motor direction of rotation of motor is the same as that of brush shift.

0 like 0 dislike

85 views 1 answer

asked Mar 22, 2018 by anonymous

Two non-collinear parallel equal forces acting in opposite direction?

Two non-collinear parallel equal forces acting in opposite direction?

Last answer: Two non-collinear parallel equal forces acting in opposite direction constitute a couple.

0 like 0 dislike

92 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.

0 like 0 dislike

5.0k views 1 answer

asked Jul 30, 2019 by anonymous

Define : i) Average value ii) RMS value of an AC Wave.

Define : i) Average value ii) RMS value of an AC Wave.

Last answer: i) Average value: The average value is defined as the average of all instantaneous values during one alternation . That is, the ratio of the sum of all considered instantaneous values to the ... as produced by the alternating current when flowing through the same resistance for the same time.

0 like 0 dislike

87 views 1 answer

asked Mar 25, 2018 by anonymous

In an AC. circuit, a low value of kVAR compared with kW indicates?

In an AC. circuit, a low value of kVAR compared with kW indicates?

Last answer: In an AC. circuit, a low value of kVAR compared with kW indicates high power factor.

0 like 0 dislike

353 views 1 answer

asked Mar 14, 2018 by anonymous

Why does a transformer only work with an AC supply?

Why does a transformer only work with an AC supply?

Last answer: The transformer work depends on the induction as main principle ,for that AC is the right means

0 like 0 dislike

109 views 3 answers

asked Mar 10, 2018 by anonymous

Can you apply Thevenin's theorem in an AC circuit?

Can you apply Thevenin's theorem in an AC circuit?

Last answer: It can be applied to AC circuits

0 like 0 dislike

75 views 1 answer

asked Mar 10, 2018 by anonymous

Can we apply Norton's theorem in an AC circuit?

Can we apply Norton's theorem in an AC circuit?

0 like 0 dislike

65 views 0 answers

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?

0 like 0 dislike

63 views 0 answers

asked Sep 7, 2018 by anonymous

What is the need of polarity marking in polyphase AC circuits?

What is the need of polarity marking in polyphase AC circuits?

Last answer: Need of Polarity Marking in Polyphase AC Circuits: i) Polarity marking of terminals provides reference polarity for better understanding of system, even if the polarity of ac voltage changes ... of current transformers in relay protection circuit and getting desired performance is very difficult.

0 like 0 dislike

80 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

0 like 0 dislike

63 views 1 answer

asked Mar 11, 2018 by anonymous

What is the symbol for AC power?

What is the symbol for AC power?

Last answer: If you need to measure alternating current in a circuit, different multimeters have different symbols to measure it (and the corresponding voltage), usually "ACA" and "ACV," or "A" and "V" with a squiggly line (~) next to or above them.

0 like 0 dislike

2.6k views 1 answer

asked Jun 18, 2018 by anonymous

An AC supply of 230 V is applied to a half-wave rectifier circuit through a transformer having primary to

An AC supply of 230 V is applied to a half-wave rectifier circuit through a transformer having primary to secondary turn’s ratio 12:1. The peak inverse voltage is A) 8.62 V B) 12 V C) 19.17 V D) 27.11 V

Last answer: An AC supply of 230 V is applied to a half-wave rectifier circuit through a transformer having primary to secondary turn’s ratio 12:1. The peak inverse voltage is A) 8.62 V B) 12 V C) 19.17 V D) 27.11 V

0 like 0 dislike

125 views 1 answer

asked Apr 29, 2018 by anonymous

An unshielded moving iron voltmeter is used to measure the voltage in an AC circuit. The stray DC magnetic

An unshielded moving iron voltmeter is used to measure the voltage in an AC circuit. The stray DC magnetic field having a component along the axis will be (1) unaffected (2) decreased (3) increased (4) either decreased or increased depending on the direction of the DC field

Last answer: An unshielded moving iron voltmeter is used to measure the voltage in an AC circuit. The stray DC magnetic field having a component along the axis will be either decreased or increased depending on the direction of the DC field

0 like 0 dislike

264 views 1 answer

asked Apr 30, 2018 by anonymous

An ac voltmeter using full -wave rectification and having a sinusoidal input has an ac sensitivity equal to

An ac voltmeter using full -wave rectification and having a sinusoidal input has an ac sensitivity equal to (1) 1.414 times dc sensitivity (2) dc sensitivity (3) 0.9 times dc sensitivity (4) 0.707 times dc sensitivity

Last answer: An ac voltmeter using full -wave rectification and having a sinusoidal input has an ac sensitivity equal to 0.9 times dc sensitivity

0 like 0 dislike

436 views 1 answer

asked Apr 29, 2018 by anonymous

A large AC generator, supplying power to an infinite bus, has a sudden short-circuit occurring at its terminals

A large AC generator, supplying power to an infinite bus, has a sudden short-circuit occurring at its terminals. Assuming the prime mover input and the voltage behind the transient reactance to remain constant immediately after the fault, acceleration of the generator rotor is

Last answer: A large AC generator, supplying power to an infinite bus, has a sudden short-circuit occurring at its terminals. Assuming the prime mover input and the voltage behind the transient reactance ... , acceleration of the generator rotor is inversely proportional to the moment of inertia of the machine

0 like 0 dislike

118 views 1 answer

asked Apr 28, 2018 by anonymous

In an adjustable speed ac drive which quantity gets reduced above rated speed ?

In an adjustable speed ac drive which quantity gets reduced above rated speed ? (A) developed torque (B) stator frequency (C) reduced starting torque (D) stator current

Last answer: In an adjustable speed ac drive which quantity gets reduced above rated speed ? (A) developed torque (B) stator frequency (C) reduced starting torque (D) stator current

0 like 0 dislike

78 views 1 answer

asked Mar 15, 2018 by anonymous

What is the principle of AC motor?

What is the principle of AC motor?

0 like 0 dislike

53 views 0 answers

asked Mar 10, 2018 by anonymous

What is the use of AC and DC drives?

What is the use of AC and DC drives?

0 like 0 dislike

73 views 0 answers

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

0 like 0 dislike

132 views 1 answer

asked Aug 9, 2017 by anonymous

what is AC motor?

Last answer: AC motor AC motor have two types one is Induction motor and second is synchronous motor. Induction motor have two types one is single phase induction motor and second is three phase ... self starting motor so using external motor or we have to start it as induction motor.

0 like 0 dislike

72 views 1 answer

...