Question # 1

The standard group of bits in digital electronic is:

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5 bits

6 bits

7 bits

8 bits

If the current in a wire which is placed perpendicular to a magnetic field increases, the force on the wire.

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Increases

Decreases

Remains the same

Will be zero

The property of substance, which opposes the flow of current through it is called:

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Resistance

Reactance

Resistivity

None

Which of the following is a method of energy transfer.

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Conduction

Reatiation

wave motion

all of these

High pitch means:

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High wavelength

High frequency

High time period

High energy

For normal person audible frequency range for sound wave lies between.

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10 Hz and 10KHz

20 Hz and 20KHz

25 Hz and 25KHz

30 Hz and 30KHz

The output of a NAND gate is 0 when

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Both of its inputs are 0

Both of its inputs are 1

any of its inputs is 0

any of its inputs is 1

The current which changes its direction is called:

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Current

A.C.

Conventional current

D.C.

The capacitance of a parallel plate capacitor is 100 pF and the potential difference between its plate is 50 volts. What is the quantity of charge on its plates:

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5000c

50c

5nC

5NC

The combined resistance of two identical resistors, connected in series is 8Ω. Their combined resistance in a parallel arrangement will be:

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2Ω

4Ω

8Ω

12Ω

If current is flowing from bottom end to the top end in a wire, according to right hand rule the direction of line of forces would be:

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Anti-clock wise

Clock wise

Left and Right

Along the conductor.

If we double both the current and the voltage in a circuit while keeping its resistance constant, the power.

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remains unchanged

halves

doubles

four time

The wave properties

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Reflection

Refraction

Diffraction

All of these

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