Question # 1

The value of maximum output power is?

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E/4R

E²/4R

E/4R²

Non of above

Resistance tolerance for gold colour is.

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50%

30%

20%

5%

During electrolysis process, density of CuSO₄ solution

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Remains constant

Decreased

Increased

None of these

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

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Mass

Charge

Energy

Momentum

Potentiometer is used to.

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Compare emf of two cells

Detect internal resistance of cell

Measure P.D.

All of these

The product of resistance and conductance is

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1

Resistivity

Conductance

Zero

A battery move a charge of 40 C around a circuit at constant rate in 20 Sec. The current will be.

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2 A

0.5 A

80 A

800 A

One ohm is equal to

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VC-1

CV-1

AC-1

VA^-1

The reciprocal of resistance is called.

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Capacitance

Resistance

Conductance

Inductance

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

Heat generated by a 40 W bulb in one hour is.

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140 J

1440 J

14400 J

144000 J

Heat energy is converted into electrical energy.

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Solar cells

thermocouples

Electric generators

None of above

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

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