Question # 1

An electron enters the magnetic field at right angle from left, B is into paper. The electron will be deflected.

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upward

To ward right

Down ward

Toward left

A battery is used in

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ohmmeter

Ammeter

Galvanometer

Voltemeter

The SI unit of magnetic permeability is.

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WbA-1m-1

Wbm-2

WbmA-1

WbAm-1

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

A dot represents the direction of magnetic field.

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Out of page

Into the page

Tangent to page

Parallels to page

A Current flowing towards the reader is denoted by.

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Cross

a bracket

A dot

Positive sign

In order to measure potential difference voltmeter is always connected in.

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Series

Parallel

Both a and b

Neither in series nor in parallel

Lorentz force means the force acting on a particle, which is

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Magnetic force only

Electric force only

Sum of electric and magnetic force

None of these

A soft iron cylinder is placed inside coil galvanometer to:

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Make field circular and strong

Make field radial and weak

Make field radial and strong

All of above

An AVO meter can also be called as.

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Digital multimeter

Digital voltmeter

Digital ammeter

Digital ohm meter

A moving charge is surrounded by:

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2 Fields

3 Fields

4 Fields

None of these

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

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

Magnetism is related to:

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Stationary charges

Moving charges

Stationary & Movingcharges

Law of motion

The unit of magnetic induction B is

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Coulomb

Ampere

Coulomb/ampere

Weber/m²

A charged particle enters in a strong magnetic field its K.E.

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Remain constant

Increases

Decreases

Increases then decreases

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 value of e/m is smallest for

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Proton

Electron

Beta particle

Positron

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