Question # 1

1 tesla =

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1 MAm^-1

1NA^-1m

1NA^-1m^-1

None of above

Which factor does not affect the conductivity of PN-Junction diode.

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Doping

Temperature

Voltage

Pressure

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

The value of e/m is smallest for

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Proton

Electron

Beta particle

Positron

De-Broglie waves are associated with

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Moving charged particles only

Moving neutral particles only

All moving particles

All parties whether in motion or at rest

The radioactive decay obeys the law

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An ammeter is an electrical instrument which is used to measure.

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Voltage

Current

Resistance

None

The combined effect of resistance and reactance in circuit is called:

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Impedance

Inductance

Capacitance

None of above

The permeability of free space is measured in

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wb A/m

Am/wb

wb/Am

m/wbA

In Series resonance circuit the impedance of circuit art resonance frequency, is

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Maximum

Minimum

It is unequal to R

None of above

The number of neutron present in a nucleus in a given by

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N = A+Z

N = A- z

N = Z - A

N = A X Z

In chopke coil the resistance X_L an resistance R are:

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X_L=R

X_L<<R

X_L>>R

X_L=∞

Identify the practical application of electrostatic force.

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Inkjet printer

x rays

Laser

A.C. Generator

Controlling rods inserted into the reactor are of metal:

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Aluminium

Cadmium

Magnesium

Copper

For electromagnetic waves, Maxwell generalized

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Gauses law for magnetism

Gauses law for eletricity

Fradays law

Amperes law

The quantity time constant RC has units of.

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Charge

Time

Capacitance

Resistance

EMF is induced due to change in

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Charge

Current

Magnetic flux

Electric field

Energy stored in inductor is.

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1/2 L I²

1/2 LI

1/2 L2I

1/2 L2I2

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