Question # 1

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

A moving charge is surrounded by:

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2 Fields

3 Fields

4 Fields

None of these

The brightness of the spot of CRO screen is controlled by.

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Anode

Cathode

Grid

Deflecting plates

___ is correct relation.

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IT = 10^-4G

IT = 10⁴ G

IT = 10² G

IT = 10^-2 G

Shunt resistance is

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Low resistance

Zero resistance

High resistance

Impedance

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 dot represents the direction of magnetic field.

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Out of page

Into the page

Tangent to page

Parallels to page

The SI unit of magnetic permeability is.

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WbA-1m-1

Wbm-2

WbmA-1

WbAm-1

Energy stored per uint volume inside a solenoid is called as

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energy density

Electric flux

Work

Volume charge density

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

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Maximum

Minimum

Zero

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

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

A positive charge is moving towards an observer, The direction of magnetic induction will be.

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Toward right

Anti clockwise

Clockwise

Toward left

NIBA =

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cθ

θ/c

c²θ

c²/θ

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

Magnetic lines of force are.

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Imaginary

Real

Perpendicular

In phase with electric lines of force

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

In CRO, the output waveform of time base generator is

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Circular

Square

Sinusoidal

Saw-toothed

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