Question # 1

Electric power:

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Vx1

V²x1

V/1

V/1²

Thermosouple is an arrangement of two different metals:

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Two convert heat energy into electrical energy

To produce more heat

To convert heat energy into chemical energy

To convert electrical energy into heat energy

Two resistance of 2 Ohm each are connected in parallel combination equivalent resistance will be.

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4 Ohm

2 Ohm

1 Ohm

8 Ohm

Resistivity at a given temperature depends upon.

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Area of cross section

Length

Nature of material of conductor

Both length and area

Specific resistance of a material depends upon.

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Length

Area

Temperature

Both A and B

The condition for the wheatstone bridge to be balanced is given by

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None of above

When a wire of length 'l' and resistance R is cut into two equal parts then resistivity of each part.

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is doubled

Remains the same

Is halved

Is one fourth

When a wire is stretched and its radius becomes r/2, then its resistance will be

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16 R

4 R

2R

0

Kirchhoff's first rule is the manifestation of the law of conservation of.

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Mass

Charge

Energy

Momentum

Magnetic effect of current is used

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To detect a current

To measure a current

In electric motor

All of above

When a pot difference of 4 volt is applied across resistance, 10 J of energy is converted Find charge flows

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0.20 C

2.5 C

5.0 C

10.0 C

The current flowing through each resistor of equal resistance in parallel combination is.

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Same

Different

Zero

Infinite

The potential difference between the head and tail of an electrical to

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600 Volt

700 Volt

800 Volt

900 Volt

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 unit of temperature co efficient of resistivity is.

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Ohm -m

K-1

K

Ohm

The resistivity of --------------------decrease with the increase in temp

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Gold

Silver

Copper

Silicon

The color code of "Green"

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8

3

5

7

Potentiometer is used to.

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Compare emf of two cells

Detect internal resistance of cell

Measure P.D.

All of these

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

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