menu search
person
What is meant by resistance heating?
thumb_up_alt 0 like thumb_down_alt 0 dislike
63 views

Related questions

Description :

What is meant by dielectric heating?

thumb_up_alt 0 like thumb_down_alt 0 dislike
74 views 0 answers
Description :

The range of frequencies used in induction heating is :  (A) 0-25 Hz  (C) less than 200 Hz  (B) 50 to 100 Hz  (D) more than 1 kHz

Answer :

The range of frequencies used in induction heating is : more than 1 kHz

thumb_up_alt 0 like thumb_down_alt 0 dislike
76 views 1 answer
Description :

The frequencies and voltage used in Dielectric heating are (A) 10 – 30 MHz, upto 25 kV (B) 50 – 60 Hz, upto 25 kV (C) 10 – 30 MHz, upto 100 V (D) 50 – 60 Hz, 110 V – 230 V

Answer :

The frequencies and voltage used in Dielectric heating are 10 – 30 MHz, upto 25 kV

thumb_up_alt 0 like thumb_down_alt 0 dislike
96 views 1 answer
Description :

Is induction heating safe?

thumb_up_alt 0 like thumb_down_alt 0 dislike
55 views 0 answers
Description :

Select insulating materials for following parts : (i) Insulation between heating element and base plate of electric iron. (ii) Insulation used over copper or aluminium conductor used for making coils. (iii) Transformer bushings. (iv) Insulation between transmission line and pole.

Answer :

Parts Insulating Materials  Insulation between heating element and base plate of electric iron. Mica Insulation used over copper or aluminium conductor used for making coils.  ... Transformer bushings Porcelain  Insulation between transmission line and pole. Porcelain

thumb_up_alt 0 like thumb_down_alt 0 dislike
78 views 1 answer
Description :

State advantages of electric heating over other types of heating methods.

Answer :

Advantages of Electric heating over the other types of heating methods: 1. It can be put into service immediately. 2. No standby losses. 3. High efficiency. 4. More economical ... low attention and supervision. 14. Protection against overheating can be provided by suitable switch gear. 

thumb_up_alt 0 like thumb_down_alt 0 dislike
150 views 2 answers
Description :

Enlist any four advantages of induction heating. 

Answer :

Advantages of Induction heating https://youtu.be/RcdH_74VJz0

thumb_up_alt 0 like thumb_down_alt 0 dislike
85 views 2 answers
Description :

_______ is used for heating non -conducting materials.  (1) Eddy current heating (2) Arc heating (3) Induction heating (4) Dielectric heating

Answer :

Dielectric heating is used for heating non -conducting materials. 

thumb_up_alt 0 like thumb_down_alt 0 dislike
2.7k views 1 answer
Description :

Answer :

In order that current should flow without causing excessive heating or voltage drop, the relay contacts should have low contact resistance, be clean and smooth, be of sufficient size and proper shape.

thumb_up_alt 0 like thumb_down_alt 0 dislike
119 views 1 answer
Description :

Answer :

Yes, Induction heating is used for both magnetic and non-magnetic materials.

thumb_up_alt 0 like thumb_down_alt 0 dislike
88 views 1 answer
Description :

Answer :

The resistance encountered by a train in motion is on account of resistance offered by air, friction at the track, friction at various parts of the rolling stock.

thumb_up_alt 0 like thumb_down_alt 0 dislike
79 views 1 answer
Description :

Arc resistance  (1) increases with increase in arc current (2) decrease with increase in arc current (3) is independent of arc current (4) is independent of arc length

Answer :

Arc resistance decrease with increase in arc current 

thumb_up_alt 0 like thumb_down_alt 0 dislike
59 views 1 answer
Description :

Identify the correct combination of respective Electric arc welding and Electric resistance welding methods :  (A) Butt welding and Seam welding  (B) Hydrogen shielding and Projection welding  (C) Seam welding and Coated electrode welding  (D) Coated electrode welding and Hydrogen shielding

Answer :

Identify the correct combination of respective Electric arc welding and Electric resistance welding methods :  (A) Butt welding and Seam welding  (B) Hydrogen shielding and Projection welding  ... Seam welding and Coated electrode welding  (D) Coated electrode welding and Hydrogen shielding

thumb_up_alt 0 like thumb_down_alt 0 dislike
85 views 1 answer
thumb_up_alt 0 like thumb_down_alt 0 dislike
100 views 0 answers
Description :

What do you mean by exciting resistance and exciting reactance?

thumb_up_alt 1 like thumb_down_alt 1 dislike
97 views 0 answers
Description :

Answer :

In a capacitor start single-phase motor, when capacitor is replaced by a resistance motor will continue to run in same direction.

thumb_up_alt 0 like thumb_down_alt 0 dislike
97 views 1 answer
Description :

what is equivalent resistance when four 4 Ohm resistors are connected in i) series ii) parallel

Answer :

equivalent resistance

thumb_up_alt 0 like thumb_down_alt 0 dislike
125 views 2 answers
Description :

What is the mathematical relationship between resistance and conductance?

thumb_up_alt 0 like thumb_down_alt 0 dislike
78 views 0 answers
Description :

What is the resistance of a coil which draws 10 A and dissipates 1520 W? A) 152 Ω B) 15.2 Ω C) 1.52 Ω D) None of these

Answer :

What is the resistance of a coil which draws 10 A and dissipates 1520 W? A) 152 Ω B) 15.2 Ω C) 1.52 Ω D) None of these

thumb_up_alt 0 like thumb_down_alt 0 dislike
119 views 1 answer
Description :

What happens to the resistance of a wire when its length as well as the cross-sectional area are doubled? A) It doubles B) It becomes 4 times C) It becomes 2π times D) It remains the same

Answer :

Automatically the resistivity will increase as they are the factors affecting the resistivity 

thumb_up_alt 0 like thumb_down_alt 0 dislike
138 views 3 answers
Description :

Consider a cube of material of sides 1 cm with a resistance of 0.003 Ω between its opposite faces. What is the resistance if the same volume of the material is drawn into a length of 50 cm with a uniform cross – section? A) 0.003 Ω B) 0.15 Ω C) 7.5 Ω D) None of these

Answer :

Consider a cube of material of sides 1 cm with a resistance of 0.003 Ω between its opposite faces. What is the resistance if the same volume of the material is drawn into a length of 50 cm with a uniform cross – section? A) 0.003 Ω B) 0.15 Ω C) 7.5 Ω D) None of these

thumb_up_alt 0 like thumb_down_alt 0 dislike
165 views 1 answer
Description :

What is the resistance of a 160 m wire with a uniform diameter of 0.28 mm, if the specific resistance is 12.32 μΩ-cm? A) 3.2 Ω B) 3.2 μΩ C) 0.8 Ω D) None of these

Answer :

What is the resistance of a 160 m wire with a uniform diameter of 0.28 mm, if the specific resistance is 12.32 μΩ-cm? A) 3.2 Ω B) 3.2 μΩ C) 0.8 Ω D) None of these

thumb_up_alt 0 like thumb_down_alt 0 dislike
4.2k views 1 answer
Description :

What is the total resistance if 5 resistors of 20 Ω each are connected in series? A) 100 Ω B) 4 Ω C) 20 Ω D) None of these

Answer :

What is the total resistance if 5 resistors of 20 Ω each are connected in series? A) 100 Ω B) 4 Ω C) 20 Ω D) None of these

thumb_up_alt 0 like thumb_down_alt 0 dislike
103 views 1 answer
Description :

What is the relationship between power and resistance?

Answer :

P = I2R Where P = power I = Current R = Resistance

thumb_up_alt 0 like thumb_down_alt 0 dislike
60 views 2 answers
Description :

What happens to the resistance when the current increases?

Answer :

Resistance  reduces  when  current  increases.

thumb_up_alt 0 like thumb_down_alt 0 dislike
85 views 1 answer
Description :

What is the lowest acceptable insulation resistance for a cable?

thumb_up_alt 0 like thumb_down_alt 0 dislike
92 views 0 answers
Description :

What is an insulation resistance test?

thumb_up_alt 0 like thumb_down_alt 0 dislike
62 views 0 answers
Description :

What should be the ideal resistance of ammeter ?

Answer :

Ideal resistance of ammeter should be zero.

thumb_up_alt 0 like thumb_down_alt 0 dislike
71 views 1 answer
Description :

Answer :

Unit of resistance is Ohm.

thumb_up_alt 0 like thumb_down_alt 0 dislike
57 views 1 answer
Description :

State the procedure for testing of earth pit resistance with necessary diagrams.

Answer :

Following procedure (Method) for testing of earth pit resistance with necessary diagrams. 1) Earth Tester : i) Three point method ii) Four point method 2) By Potential drop method 3 ... of that earthing pit. In this test the accuracy is less but electrical rods are not required. 

thumb_up_alt 0 like thumb_down_alt 0 dislike
142 views 1 answer
Description :

State the impact of inductance and resistance on transmission line performance

Answer :

Impact of inductance on transmission line: 1) It causes IXL drop in transmission line which affects regulation. 2) It is the only parameter which decides power transmission capacity of line i. ... is very small, it causes losses, temperature rise& poor voltage regulation so it cannot be neglected

thumb_up_alt 0 like thumb_down_alt 0 dislike
99 views 1 answer
Description :

Write measures to be taken to maintain the insulation resistance of electrical machines to healthy levels.

thumb_up_alt 0 like thumb_down_alt 0 dislike
52 views 0 answers
image
Answer :

.embed-container { position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden; max-width: 100%; } .embed-container iframe, .embed-container object, .embed-container embed { position: absolute; top: 0; left: 0; width: 100%; height: 100%; }

thumb_up_alt 0 like thumb_down_alt 0 dislike
84 views 1 answer
Description :

role of the series resistance connected in PMMC movement.

Answer :

A PMMC Instrument can be used as voltmeter by just connecting a series resistance with the moving coil. This series resistance is called Voltmeter Multiplier. This combination of moving coil and ... current whose voltage is to be measured. Ideally the resistance of voltmeter should be infinite

thumb_up_alt 0 like thumb_down_alt 0 dislike
92 views 1 answer
Description :

Define resistance with its unit.

Answer :

Resistance is a measure of the degree to which a substance impedes the flow of electric current induced by a voltage.  Or Resistance is the opposition to current flow in an electrical circuit. Unit is ohm.(Ω)

thumb_up_alt 0 like thumb_down_alt 0 dislike
55 views 1 answer
Description :

List two advantages of platinum resistance thermometer.

Answer :

1. The platinum resistance thermometer is stable 2. It is resistant to corrosion 3. It is resistant to oxidation

thumb_up_alt 0 like thumb_down_alt 0 dislike
51 views 1 answer
Description :

How does the resistance of a conductor compare to that of an insulator?

Answer :

The resistance of a conductor can be significantly lower than the resistance of an insulator, depending on each material's atomic properties.

thumb_up_alt 0 like thumb_down_alt 0 dislike
2.6k views 1 answer
Description :

Resistance formula

Answer :

The formula for resistance is, Where, R = resistance in Ohms ρ = resistivity in ohm - metre l = length A = cross sectional area

thumb_up_alt 0 like thumb_down_alt 0 dislike
113 views 2 answers
Description :

Parallel Reactance and Resistance Example 1

Answer :

Parallel Reactance and Resistance Example 1

thumb_up_alt 0 like thumb_down_alt 0 dislike
120 views 2 answers
Description :

AC Circuits with Resistance but No Reactance

Answer :

AC Circuits with Resistance but No Reactance AC Circuits with Resistance but No Reactance Series resistances let two resistances R 1 and R 2 are connected in series as shows in figure and there ... voltage. Voltage V A is common to both the branch hence voltage V A is common reference.

thumb_up_alt 0 like thumb_down_alt 0 dislike
73 views 1 answer
Description :

Problems on resistance and resistivity

Answer :

Problem on resistance and resistivity 1 : https://youtu.be/OqavD7OlZUs Problem on resistance and resistivity 2 : https://youtu.be/0eo8VO8cpwk Problem on resistance and resistivity 3 : https:// ... https://youtu.be/3neLRCTz0RQ Problem on resistance and resistivity 13 : https://youtu.be/vBCkvPOiztY

thumb_up_alt 0 like thumb_down_alt 0 dislike
93 views 1 answer
Description :

Problem on temperature coefficient of resistance 3

Answer :

Problem on temperature coefficient of resistance 3

thumb_up_alt 0 like thumb_down_alt 0 dislike
58 views 1 answer
Description :

Problem on temperature coefficient of resistance 2

Answer :

Problem on temperature coefficient of resistance 2

thumb_up_alt 0 like thumb_down_alt 0 dislike
56 views 1 answer
Description :

Problem on temperature coefficient of resistance 1

Answer :

Problem on temperature coefficient of resistance 1

thumb_up_alt 0 like thumb_down_alt 0 dislike
57 views 1 answer
Description :

Problem on resistance and resistivity 13

Answer :

Problem on resistance and resistivity 13

thumb_up_alt 0 like thumb_down_alt 0 dislike
67 views 1 answer
Description :

Problem on resistance and resistivity 12

Answer :

Problem on resistance and resistivity 12

thumb_up_alt 0 like thumb_down_alt 0 dislike
57 views 1 answer
Description :

Problem on resistance and resistivity 11

Answer :

Problem on resistance and resistivity 11

thumb_up_alt 0 like thumb_down_alt 0 dislike
48 views 1 answer
Description :

Problem on resistance and resistivity 10

Answer :

Problem on resistance and resistivity 10

thumb_up_alt 0 like thumb_down_alt 0 dislike
51 views 1 answer
Description :

Problem on resistance and resistivity 9

Answer :

Problem on resistance and resistivity 9

thumb_up_alt 0 like thumb_down_alt 0 dislike
49 views 1 answer
Description :

Problem on resistance and resistivity 8

Answer :

Problem on resistance and resistivity 8

thumb_up_alt 0 like thumb_down_alt 0 dislike
72 views 1 answer
editAsk a Question
...