Question # 1

A moving charge is surrounded by:

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2 Fields

3 Fields

4 Fields

None of these

A Current flowing towards the reader is denoted by.

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Cross

a bracket

A dot

Positive sign

The unit of Magnetic flux is called.

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weber

weber/m²

NM^-1A^-1

None of above

Energy stored per uint volume inside a solenoid is called as

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energy density

Electric flux

Work

Volume charge density

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

In CRO, the output waveform of time base generator is

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Circular

Square

Sinusoidal

Saw-toothed

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

NIBA =

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cθ

θ/c

c²θ

c²/θ

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

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Large

Small

Constant

Zero

Grid in cathode ray oscilloscope controls.

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Number of electron

Temperature of filament

Frequency of electron

Energy of electrons

For accurate measurement of current through a circuit, the resistance of ammeter should be

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Very small

Very high

Neither small nor high

None of the above

The unit of magnetic induction is:

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Tesla

Weber

Weber metre

NAm^-1

The dimensions of magnetic flux are

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M¹L^-2T¹A¹

MLT^-2A^-1

ML²T²A^-1

ML²T^-2A^-1

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

Ampere's law is applicable to:

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Circular path

Rectangular path

To any closed path

Nonwe of these

The acceleration of an electron of mass m and charge e, moving with uniform speed v at right angles to a magnetic field of flux density B, is given by

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Bevm

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

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