Question # 1

Conversation of only one half of A.C. into D.C. is called.

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Half wave amplification

Wave amplification

Half wave electrification

Half wave rectification

The natural frequency of L.C circuit is equal to

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Average value of current and voltage over a complete cycle is.

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Positive

Negative

Zero

Infinite

One joule is equal to.

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1.6 x 10¹⁹ eV

1.6 x 10^-19 eV

6.25 x 10^-18 eV

6.25 x 10 ¹⁸ eV

The self induction emf is some times called.

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Motional emf

Constant emf

Back emf

Variable emf

Internal frame is a frame is which

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1st law holds

2nd law holds

3rd law holds

Kelvin's law holds

One of the applications of electrostatic induction is

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Laser

Photocopier

X ray machine

Wilson cloud chamber

In gas the charge carriers are:

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Electrons

Ions

Both a & b

None of above

Coulomb /volt is called.

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Farad

Ampere

Joule

Henry

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

The emf induced by the motion of a conductor across a magnetic field is called:

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Motional emf

Rotational emf

Induced emf

All of above

The radius of hydrogen atom is:

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0.53A°

0.053A°

0.53 x 10^-9

0.053 x10^-9

An AVO meter can also be called as.

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Digital multimeter

Digital voltmeter

Digital ammeter

Digital ohm meter

The reciprocal of resistance is called.

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Capacitance

Resistance

Conductance

Inductance

The velocity of an oscillating charge as it moves to and fro along a wire is.

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Changing

Constant

Infinite

zero

The process of copying is:

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Axillugraphy

Chromatography

Xerography

Spectrography

Tolerance of "Gold" band.

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±10%

±5%

±15%

±20%

The electromagnetic spectrum contains

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Radio waves

X-rays

Microwaves

All of these

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