Question # 1

1 volt is equal to:

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JC

JC^-1

JC^-2

JC^-3

In electric motor, the brushes are made of:

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Lead

Graphite

Iron

Wood

for which of following ampere second could be the unit:

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energy

current

charge

power

The unit of potential difference is:

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Volt

Coulomb

Ampere

Joule

In C.R.O grid is always connected with potential:

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Negative

Positive

High positive

Zero positive

Those quantities whose values do not remain constant are called:

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physical quantities

Digital quantites

Log quantities

Analog quantities

The product of charge ‘q’ and potential difference is equal to:

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Power

Force

Capacitance

Energy

For the emission of electrons from the tungsten filament the values of current and voltage are taken as:

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0.1 A and 2V

0.2 A and 4V

0.3A and 6V

0.4A and 8V

Which memory consists of integrated circuits?

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Primary memory

Audio cassette

Video cassette

Compact cassette

The loudness of a sound is most closely related to its:

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Frequency

Period

Wavelength

Amplitude

The temperature at the centre of sun is.

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10 million k

20 million k

30 million k

35 million k

Mathematical formula of capacitance of a capacitor is:

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C = QV

C = Q/V

C = V/Q

C = V2/Q

A large ripple tank with a vibrator working at a frequency of 30 Hz produces 25 complete waves in a distance of 50 cm.

The velocity of the wave is:

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53 cms^-1

60 cms^-1

750 cms^-1

1500cms^-1

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