Question # 1

A photon while passing thorugh a magnetic field are deflected towards:

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North pole

South pole

Are ionized

None of these

The e/m of a neutron is

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Less than electron

The same as electron

Zero

Greater than election

A battery is used in

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ohmmeter

Ammeter

Galvanometer

Voltemeter

The Weber is unit of measure of:

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Conductance

Electric current

Magnitic flux

Electric flux

1 tesla =

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1 MAm^-1

1NA^-1m

1NA^-1m^-1

None of above

If current flowing through a solenoid becomes four times, then magnetic field inside becomes.

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two times

three times

four times

Half

The permeability of free space is measured in

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wb A/m

Am/wb

wb/Am

m/wbA

The sensitivity of Galvanometer can be increased by:

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Increasing C/BAN factor

Decreasing C/BAN factor

Increasing angle θ

All of above

The name of the scientist who noted that a compass needle was deflected when placed near the current carrying conductor

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Henry

Faraday

Coloumb

Oersted

The field is strong and uniform.

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Inside the solenoid

Surrounding of solenoid externally

Perpendicular to solenoid

All of above

Which one of the following resistance is used to convert a Galvanometer into an ammeter.

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High resistance

Low resistance in series with galvanometer

Shunt

High resistance in series with galvanometer

The magnetic field is uniform and stronger

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Outside the solenoid

Inside the solenoid

At the central part of the solenoid

None of these

A sensitive galvanometer is

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Unstable

Stable

Moderate

Both B and C

μ_∘(Ampere's constant) has value.

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4πx10^-7 WbA^-1m^-1

4πx10^-17 Wbm²

4πx10⁷ WbA^-1m^-1

4πx10-27 Wb/m²

A positive charge is moving towards an observer, The direction of magnetic induction will be.

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Toward right

Anti clockwise

Clockwise

Toward left

The galvanometer can be made sensitive by making the factor BAN/C

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Large

Small

Constant

Zero

If a charge is at rest in a magnetic field then force on charge is

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Zero

Double

One fourth

Four times

If the length of solenoid is doubled but N same, B inside the solenoid becomes.

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Half

Doubled

One fourth

Four times

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