Question # 1

The distribution of electrical charge i an object caused by teh influence of nearby charges is called.

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Electric potential

Electrostatic induction

Electric flux

Electric dipole moment

In the experiment of force on a current carrying conductor in a uniform magnetic field the magnitude of force depends upon which factor.

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Force is inversely proportional to current

Force is directly proportional to current

Force is inversely proportional to voltage

Force is directly proportional to voltage

One weber is equal to.

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N A-1

N m-1 A

N mA-1

N m-1 A-1

What is the degree of magnetization of a material.

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Susceptibility

Ablitity

Retentivity

Capacity

At low frequency the value of resistance of certain capacitors is.

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small

Large

Moderate

Unmeasurable

Which one of the following instruments has the maximum resistance.

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Ammeter

Voltmeter

Micro ammeter

Milli ammeter

What is the traditional name for a capacitor

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Choke

Condenser

Transformer

Inductor

Why choke coil is used in an AC circuit.

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To decrease D.C.

To increases A.C.

To decreases A.C

To increase D.C

Which of the following defines P.E. per unit charge.

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Electric current

Charges

Potential

Electric field

Which magnetic properties is inherent in all materials.

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Para magnetism

diamagnetism

Ferromagnetism

demagnetism

Artificial polymers are made by a chemical reaction known as.

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Crystallization

Electroplating

Polymerization

Polarization

A current carrying loop lying-in a magnetic field behaves lime a.

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Magnetics pole

Magnetic material

Magnetic dipole

Horse shoe magnet

Alternating current generator consists of a coil and a pair of.

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Split rings

Slip rings

Metal rings

Copper rings

Which physical law expresses the relationship between the heat generated and the current through a conductor.

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Ohm's law

Kirchoff's law

Joule's law

Ampere's law

According to Gauss's law the number of electric field lines crossing any closed surface is.

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numerically equal to the enclosed charge

Equal to the enclosed positive charge

Equal to teh electric field inside the surface

Equal to the charge density on the surface.

The cause of ferromagnetism is.

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Orbital motion of elections

spin Motion of electrons

Permanent dipole memento

Spin angular momentum

The doped semi conductor materials are called

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Pure semi conductors

Poor semi conductors

Super conductors

Extrinsic semiconductors

The conductivity of a conductor is independent of the

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Electric charge

Electric potential

Electric field

Internal resistance

Thermocouple is used for

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Converting atomic energy into heat energy

Measure the radiant energy

Storing the heat energy

Measuring current

The most common trivalent impurities are

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Boron , indium

Arsenic, indium

Arsenic, Antimony

Aluminium, Boron

Which one of the following is not a measure of electric power.

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Vi

I2R

VR2

V2/R

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