A series circuit consists of three resistors with values of 140, 250 and 220. The total resistance is

(a)

330

(b)

610

(c)

720

(d)

None of the above

When will be the current flow in a circuit?

(a)

A switch is closed

(b)

A switch is opened

(c)

Switch is either open or closed

(d)

None of the above

When one of three series resistors is removed from a circuit and the circuit is reconnected the current

(a)

increase by half

(b)

increases

(c)

decreases by half

(d)

none of the above

The S1 unit of power is

(a)

joule

(b)

ampere

(c)

Watt

(d)

ohm

A parallel circuit consist of three resistors with values of 430, 210 and 100. The total resistance is

(a)

0.017 ohm

(b)

58.82 ohm

(c)

58.82 kilo ohm

(d)

None of the above

According to Ohm's law if voltage increase and resistance stays the same

(a)

Resistance decreases

(b)

Current increases

(c)

Current remains the same

(d)

Current decreases

The amount of work done in joules when one unit electric charges moves from one point to another point in an electric circuit is called.

(a)

Resistance

(b)

Potential difference

(c)

Current

(d)

charge

The resistance of material depends on.

(a)

Temperature

(b)

Length of conductor

(c)

Area of cross-section

(d)

All the above

The relation between potential difference (V) and current (I) is:

(a)

V \(\alpha\)I

(b)

V\(\alpha\)I²

(c)

V\(\alpha\)\(\frac{I}{I}\)

(d)

None of the above

The relation between potential difference (V) and current (I) was discovered by:

(a)

Volt

(b)

Ohm

(c)

Newton

(d)

Ampere

Give the name of components which is designed to oppose the flow of current.

(a)

Capacitor

(b)

Resistors

(c)

Fuse wire

(d)

Inductor

The resistance of a conductor directly proportional to

(a)

 Length

(b)

Area

(c)

Volt

(d)

Current

Which of the following laboratory apparatus is used during the verification of Ohm's law?

(a)

Voltmeter

(b)

Ammeter

(c)

Rheostat

(d)

All the above

Kilowatt - hour is the unit of

(a)

Power

(b)

Potential difference

(c)

Force

(d)

Electrical energy

If resistance decreases, then current will

(a)

increase

(b)

double

(c)

decrease

(d)

constant