Current Electricity - 1

Name one D.C source.

• A.C generator

• Cell

• Lead accumulator

• Ni-Fe accumulator

How much is the charge on a electron?

• 5.6×10¹⁰

• 3.3×10-⁵

• 1.6×10¹⁹

• 2.5×10¹⁵

Name the instrument used to control current in an electric circuit.

• Rheostat

• Valnometer

• galvanometer

• ammeter

Secondary cell is a __________ chemical cell.

• Reversible

• Irreversible

• Both A. and B.

• None of these

__________is used to measure the magnitude of current flowing in a circuit.

• Galvanometer

• Ammeter

• Voltmeter

• load

An appliance which is connected in a circuit

• Load

• rheostat

• Key

• Cell

Give an example of conductor

• Glass

• Copper wire

• Mercury

• Pure water

The current in which negative charges start from negative terminal and ends in the positive terminal is known as

• Conventional Current

• Electronic Current

• Ionic Current

• All the above

The average Thermal velocity of free electrons in a conductor is

• Zero

• non-zero

The average Thermal velocity of free electrons in a conductor is

• Zero

• non-zero