Question # 1

Kirchhoff's voltage rule is a way of stating conservation of.

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Mass

Charge

Energy

Momentum

If the resistance of 500 Ohm have fourth band of silver colour then its upper maximum resistance will be.

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600 Ohm

550 Ohm

450 Ohm

400 Ohm

Electric power:

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Vx1

V²x1

V/1

V/1²

A substance having the negative temperature co efficient of resistivity out of the following is.

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Carbon

Iron

Tungsten

Gold

Which one of the following bulbs has the least resistance.

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100 W

200 W

500 W

1000 W

Semiconductor diodes are called:

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Ohmic

non ohmic

Both a & b

none of above

By increasing the temperature of conductor, the flow rate of charges.

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Increase

Remains constant

Decreases

Changes exponentially

Three resistors of resistance R each are combined in various ways, Which of the following cannot be obtained?

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3 RΩ

2R /4Ω

R/3Ω

2R /3Ω

A rheostat can operate as.

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Amplifier

Potential divider

Oscillator

Transformer

A charged conductor has charge on its.

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Inner surface

Outer surface

Middle surface

Surrounding space

What is the resistance of carbon resistor which has band brown black brown.

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100 Ohm

1000 Ohm

10 Ohm

1.0 Ohm

The current through a resistance of 100 Ohm when connecting across a source of 220 V is.

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22000 A

22 A

2.2 A

0.45 A

The heat produced by passage of current.

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H=I²Rt

H=IR2T

H=I/Rt

H=I²/Rt

A wire uniform cross-section. A length L and resistance R is cut into two equal parts. The resistivity of each part will be:

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Doubled

Halved

Remain the same

One fourth

The powers of two electric bulbs are 100w and 200w. Which are connected to power supply of 220 V. The ratio of resistance of their filament will be:

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1:2

2:1

1:3

4:3

A rheostat can be used as variable resistor as well as a-------------

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Potential divider

Current divider

Wheat stone bridge

Power divider

Magnetic effect of current is used in.

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Toaster

Electric iron

Electric motor

D.C. Battery

Specific resistance of a material depends upon.

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Length

Area

Temperature

Both A and B

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Physics ICS Part 2 Chapter 13 Online MCQ's Test MCQs With Answers

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