Question # 1

The flow of D.C current is opposed by

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Resistor

Induction

Capacitor

All of these

Commentator was invented by

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Henry

Ousted

Maxwell

William sturgeon

the force between two charge is 28 N. If paraffin wax of relative permittivity 2.8 is introduced between the charges as medium, then the force reduces to.

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25 N

20 N

10 N

15 N

Closeness of the electric field lines is the measure of.

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Direction of field

Strength of field

Potential difference

Uniformity of field

Magnetic flux density at a point due to current carrying coil is determined by

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Ampere's law

Faraday's law

Lenz's law

Gauss's law

A sensitive galvanometer is

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Unstable

Stable

Moderate

Both B and C

A changing electric flux creates.

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Electric fields

Gravitational

Magnetic field

Electric charge

When platinum is it becomes orange at

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500^oC

900^oC

1100^oC

1300^oC

The position has charge which is in magnitude equal to the charge on

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Electron

Proton

β particle

All

Very weak magnetic field produced by brain can be detected by

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MRI

CAT scans

Squid

CRO

The vessel containing the tow electrodes and liquid to known as.

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Chemical cell

Volt cell

Volta cell

Volta meter

A battery is used in

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ohmmeter

Ammeter

Galvanometer

Voltemeter

In full wave rectification number of diodes required are equal to.

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2

3

4

5

X₁is low for low frequency Fy but Xc is.

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Zero

Low

High

Same is H

An ordinary glass gradually softness into a paste like state before it becomes a very viscous liquid which is possible at

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900^oC

600^oC

800^oC

100^oC

A positron is an anti particle of.

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Proton

Electron

Neutron

Photon

Compton's effect is associated with

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gamma rays

Beta rays

X rays

Positive rays

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