Question # 1

A sensitive galvanometer is

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Unstable

Stable

Moderate

Both B and C

To convert a galvanometer into an ammeter, we connect with it a

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Shunt resistance

Low value parallel

Low value by pass resistor

All of above

In current carrying long solenoid the magnetic field produced does not depend upon.

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The radius of solenoid

Number of turns per unit length

Current flowing through solenoid

All of the above

The SI unit of flux density is.

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NA-1 m2

NA-1 m-1

NAm-1

NA-1 m

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

Magnetic lines of force are.

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Imaginary

Real

Perpendicular

In phase with electric lines of force

Magnetism is related to:

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Stationary charges

Moving charges

Stationary & Movingcharges

Law of motion

A galvanometer is an electrical instrument used to

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Measure resistance

Measure voltage

Detect passage of current

None of these

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 function of three anodes a C.R.O is

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To accelerate electrons only

To focus the electrons only

To control the brightness of spot on screen

To accelerate and focus the electrons

The magnetic force is simply a

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Reflecting force

Deflecting force

Restoring force

Gravitational force

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

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No unit

m^-1

m^-2

m-3

The sensitivity of galvanometer directly depends upon

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Magnetic field

Area of coil

Both a and b

None of a, b, c

The sum of electric and magnetic force is called.

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Maxwell force

Lorentz force

Newton's force

Centripetal force

A charged particle having charge 'q' is moving at right angle to magnetic field. The quantity which varies is.

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Speed

Kinetic energy

Path of motion

angular velocity

If an electron is prijected in a magnetic field with velocity V, it will experience a force

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One weber is equal to:

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N.A ²/m

N.m²/A

N.A/m

N.m/A

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