Question # 1

The electric flux through closed surface depends upon

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Charge

Medium

Geometry

Charge and Medium

Output of D.C. motor is

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A.C. energy

Mechanical energy

Chemical energy

D.C. energy

Energy needed to produce an electron hole in solid state detector is.

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1 to 2 eV

3 to 4 eV

6 to 7 eV

8 to 9 eV

An AVO meter can also be called as.

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Digital multimeter

Digital voltmeter

Digital ammeter

Digital ohm meter

Capacitance of a capacitor does not depend upon.

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Distance between plates

Area of plates

Electric field between plates

Medium between plates

The reciprocal of resistance is called.

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Capacitance

Resistance

Conductance

Inductance

Natural rubber is an example of:

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Crystalline solids

Amorphous solids

Polymeric solids

None of above

Application of wave like nature of particle is

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Photodiode

Optical microscope

Electron microscope

Compound microscope

When a wire is stretched and its radius becomes r/2, then its resistance will be

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16 R

4 R

2R

0

The building blocks of protons and neutrons are called.

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Ions

Electrons

Positrons

quarks

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

A photo diode can turn its current ON and OFF in

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Micro seconds

Mega seconds

Nano seconds

Mili seconds

In the equation if f₂ > then

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For ohmic device the graph between V and I is.

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A straight line

Curve

Hyperbola

Parabola

Mutual induction play role in.

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Generator

D.C. motor

Galvanometer

Transformer

Two metallic sphere of radius 2 cm and 4 cm get equal quantity of charge. Which has greater surface charge density ?

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2^nd sphere

Both have same

First sphere

None of these

The value of capacitive reactance is given by

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Xc = VI

All of above

Which of the following quantities remain constant in step up transformer?

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Current

Voltage

Power

Heat

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