Question # 1

For a current carrying solenoid the term 'n' has unit as.

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No unit

m^-1

m^-2

m-3

In order to increase sensitivity of galvanometer the value of C may be

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Increase

Decrease

Neither increase nor decrease

Remain same

Energy stored per uint volume inside a solenoid is called as

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energy density

Electric flux

Work

Volume charge density

To convert a galvanometer into a volt meter a high resistance is connected.

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In series

In parallel

In perpendicular

Along tangent

The torque in the coil can be increased by increasing:

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No. of turns

Current and magnetic field

Area of coil

All of the above

Torque is produced in a current carrying coil when it is placed in a

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Magnetic field

Electric field

Gravitational field

Nuclear field

CRO works by deflecting the beam of electron as they pass through

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Uniform magnetic field

Uniform electric field between two sets of parallel plates

Non-uniform magnetic field

None of these

The value of e/m is smallest for

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Proton

Electron

Beta particle

Positron

The SI unit of magnetic induction 'B' Tesla is equal to.

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NA-1m-1

Nam-1

NA-1 m

Na2m-1

The magnetic force is simply a

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Reflecting force

Deflecting force

Restoring force

Gravitational force

Weber is the unit of

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Magnetic flux

Permeability

magnetic force

None of above

The unit of permiability of free space is:

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T.m/A

T.m²/A

T.m/A²

None of these

When Ohm meter gives full scale deflection it indicates.

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Zero resistance

Infinite resistance

Small resistance

Very High resistance

The force on a charge particle moving parallel to magnetic field is:

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Maximum

Minimum

Zero

None of these

The SI unit of E is NC-1 and that of B is Na-1 m-1 then the unit of E/B is.

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ms-2

ms

ms^-1

m-1s-1

A sensitive galvanometer is

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Unstable

Stable

Moderate

Both B and C

One weber is equal to:

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N.A ²/m

N.m²/A

N.A/m

N.m/A

A moving charge is surrounded by:

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2 Fields

3 Fields

4 Fields

None of these

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