Electrostatics interview questions – page 2

Surface charge density is ___

1. Charge/density
2. Charge per unit area
3. Charge per unit volume
4. None of the above

The branch of Physics which deals with static electric charges or charges at rest is _____

1. Electromagnetism
2. Electricity
3. Statics
4. Electrostatics

Change of potential with distance is known as

1. Charge gradient
2. Intensity gradient
3. Potential gradient
4. None of the above

In insulators and semiconductors, as temperature increases, resistance ____

1. Tends to infinity
2. Remains the same
3. Increases
4. Decreases

The electrolyte used in voltaic cell is

1. Concentrated nitric acid
2. Dilute sulphuric acid
3. Hydrochloric acid
4. Nitric acid

The current produced in a thermocouple is called

1. Frictional current
2. Thermoelectric current
3. Magnetic current
4. None of the above

The belt in Van de Graff generator is made up of

1. Leather
2. Fur
3. Silk
4. Rubber

An ideal ammeter has ___ resistance.

1. High
2. Zero
3. Positive
4. Infinite

The percentage of lead and tin in fuse wire is

1. 73% and 27%
2. 66% and 34%
3. 63% and 37%
4. 37% and 63%

According to Faraday’s law of electrolysis, when a current is passed, the mass of ions deposited at the cathode is independent of ___

1. Resistance
2. Time
3. Charge
4. Current

Who termed the classification of positive and negative charges?

1. Faraday
2. Maxwell
3. Thales
4. Franklin

Electric field at a point is measured in terms of

1. Electric field intensity
2. Electric charge
3. Electric Potential
4. All the above

Electron is a ____ word.

1. Persian
2. Greek
3. Indian
4. German

The unit of capacitance is ___

1. Farad
2. Volt
3. Ampere
4. Coulomb

The earth is an example for ____

1. Insulator
2. Conductor
3. Semiconductor
4. Dielectric