Question # 1

One weber is equal to:

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N.A ²/m

N.m²/A

N.A/m

N.m/A

The vector sum of electric force and magnetic force is called:

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Deflecting force

Lorentz force

Newton force

Faraday's force

If a low resistance is connected parallel to a galvanometer then galvanometer is converted.

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Ammeter

Voltammeter

Ohmmeter

Multimeter

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

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 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 current carrying long solenoid the magnetic field produced does note depend upon

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The radius of solenoid

Number of turns per unit length

Current flowing through solenoid

All of above

A moving charge is surrounded by:

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2 Fields

3 Fields

4 Fields

None of these

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

If the number of turns become double but length remain same, then magnetic field in the solenoid become.

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Half

Double

Remain same

Zero

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

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

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

Magnetic flux density at a point due to current carrying coil is determined by

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Ampere's law

Faraday's law

Lenz's law

Gauss's law

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

Magnetic flux density is measured in

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Weber

Weber/m2

Tesla -m

Gauss

Write the SI unit of magnetic flux.

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Tesla

Weber

Weber m-2

Tesla m2

The unit of Magnetic flux is called.

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weber

weber/m²

NM^-1A^-1

None of above

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

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Maximum

Minimum

Zero

None of these

Shunt resistance is

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Low resistance

Zero resistance

High resistance

Impedance

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

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