Question # 1

Radio frequency choke is

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Iron cored

Air Cored

Air as well as iron cored

None of these

The SI unit of stress is same as that of.

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Pressure

Force

Momentum

Work

In case of reverse biasing, current is flown due to:

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Minority charge carriers

Majority charge carriers

Electrons

Protons

Electric potential at a distance ''r'' from ''q'' is:

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V_r = 1/54πε_∘q/r₂

Vr=1/4πε_∘²q/r

V_r=1/4πε_∘2q/r

V_r=1/4πε_∘q²/r

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

Power dissipation is a pure inductive or in a pure capacitance circuit is:

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10⁶

0

10^∘

Maximum

Curie temperature is

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Differen for chromium oxide and cobalt

Same for chromium oxide and cobalt

Same for iron and cobalt

None of these

The value of capacitive reactance is given by

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Xc = VI

All of above

Which one of the following is polymeric solids

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Glass

Nylon

Copper

Zinc

The p-n junction in which p side is connected to+ive and n-side is -ve the junction is said to be:

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Neutral

Forward biased

Reversed biased

None of above

Electromagnetic induction obeys law of conservation

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Charge

Energy

Momentum

Mass

For Paschen series, the value of 'n' starts from

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2

4

6

8

The mass of beta particle is equal to mass of.

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Protons

Electrons

Neutrons

Boron

In 1905, the special theory of relativity was proposed by

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Einstein

Bohr

Maxwell

De Broglie

First spectral series of hydrogen atom was discovered by

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Lyman

Rydberg

Balmer

Paschen

Young's modulus for water's is

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Zero

1

2

3

if time constant in RC series circuit is small, then capacitor is charged or discharged.

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Slowly

Rapidly

At constant rate

Intermittently

The phase difference between current and voltage in an inductive circuit is.

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zero

90 ^o

180 ^o

45^o

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