Question # 1

The Kirchhoff 1^st rule is manifestation of:

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Law of conservation of mass

Law of Conservation of charge

Law of conservation of energy

None of above

Tolerance of "Gold" band.

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±10%

±5%

±15%

±20%

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

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

The unit of resistance is:

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Ω

Ωm

Ω^-1m^-1

Ωm^-1

Drift velocity of electrons is.

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10^-1 m/s

10^-2 m/s

10^-3 m/s

10³ m/s

The drift velocity is of order:

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10^-13m/s

10³ m/s

10^-3m/s

10^-4m/s

In carbon resistors, then value of Blue colour is.

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6

7

8

9

The head produced by the passage of current through a resistor is.

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H= I²Rt

H = IR²t

H = 1/Rt

H = I²/Rt

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

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None of above

The free electrons experience force.

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In direction of -E

In direction of E

Both A and B

All of the above

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

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

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Carbon

Iron

Tungsten

Gold

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

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Same

Different

Zero

Infinite

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

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

The reciprocal of resistance is called.

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Capacitance

Resistance

Conductance

Inductance

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