Question # 1

Specific resistance of a material depends upon.

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Length

Area

Temperature

Both A and B

Which is not fundamental logic gate.

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NOT

AND

OR

NAND

A force of 0.01 N is exerted on a charge 1.2 x 10^-5 C at a certain point. The electric field at that point is

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1.2 x 10⁴ N/C

1.2 x 10⁴ C/N

8.3 x 10² N/C

8.3 x 10^-2 N/C

Magnetic effect of current is used

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To detect a current

To measure a current

In electric motor

All of above

the core of transformer is laminated so reduce.

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Magnetic loss

Hysteresis loss

Eddy current loss

Electric loss

The Lenz's law is also statement of:

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Law of conservation of mass

Law of conservation of charge

Law of conservation of energy

Law of conservation of momentum

Commutator was invented by:

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William bills

William Gates

William tells

William Sturgeon

Energy stored per uint volume inside a solenoid is called as

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energy density

Electric flux

Work

Volume charge density

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 unit of resistance is:

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Ω

Ωm

Ω^-1m^-1

Ωm^-1

A solid having regular arrangement of molecules throughout its structure is called.

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Amorphous solid

Polymeric solid

Crystalline solid

Glassy solid

In Wilson cloud chamber, ß-particles leave

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Thin and continuous tracks

Thick and continuous tracks

No tracks

Thin and discontinuous tracks

The leV =

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1.6x10-19C

1.6x10-11J

1.6x10-19J

1.6x10-11C

The unit of impedance is.

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Henry

Hertz

Ampere

Ohm

The unit of strain is:

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Nm

Nm^-2

no unit

Nm²

Photo copier and inkjet printer are the applications of

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Magnetism

Electricity

`.Electro magnetism

Electrostatics

Which type of impurity is to be added to a pure semi conductor crystal to provide holes.

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Monovalent

Trivalent

Tetravalent

Pentavalent

The critical temperature of mercury is.

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1.18 K

4.2 K

3.72 K

7.2 K

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