ECAT Pre Computer Science Chapter 16 MCQ Test With Answer

MCQ's Test For ECAT Physics Chapter 16 Alternating Current

Try The MCQ's Test For ECAT Physics Chapter 16 Alternating Current

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ECAT Physics Chapter 16 Alternating Current

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Question # 1

The open loop gain of OP-AMP is of the order of

Question # 2

Chock consumes externally small

Question # 3

In half wave rectification

Question # 4

At resonance, the phase angle for RLC series resonance circuit equals

Question # 5

To design a resonant circuit of frequency 100 KHz with an inductor of inductance 5 mH, we need a capacitor of capacitance

Question # 6

The value of current gain of n-p-n transistor is of the order of

Question # 7

The time interval during which the Voltage source changes its polarity once is known as:

Question # 8

The average of A.C. current and voltage over a complete cycle is

Question # 9

At resonance, the impedance of RLC series circuit is

Question # 10

A P-N juction or semiconductor diode cannot be used as

Question # 11

The basic circuit element in A.C. circuits are:

Question # 12

In a transistor, if the central region is n-type, then this type of transistor is known as

Question # 13

The sum of positive and negative peak values is called:

Question # 14

For a n-p-n transistor, the conventional current equation can be written as

Question # 15

In a transistor, the central region is called

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ECAT Physics Chapter 16 Important MCQ's

Sr.# Question Answer
1 The output voltage of half wave rectification is in the form of
A. a smooth curve
B. a smooth wave
C. pulses
D. all of the above
2 The basic circuit element in A.C. circuits are:
A. Resistor and capacitor
B. Resistor and Inductor
C. Capacitor only
D. Both (B) and (C)
3 The basic circuit element in D.C. circuit is:
A. A capacitor
B. A resistor
C. An inductor
D. Both (A) and (C)
4 Chock consumes externally small
A. Charge
B. Current
C. Power
D. Potential
5 Most OP-AMP operates with
A. + 6 V supply
B. + 10 V supply
C. + 12 V supply
D. + 24 V supply
6 The waveform of alternating voltage is a:
A. Square
B. Rectangular
C. Saw-tooth
D. Sinusoidal
7 The average of A.C. current and voltage over a complete cycle is
A. Maximum
B. zero
C. Neither zero nor maximum
D. None of these
8 In RLC series circuit, resonance occurs when
A. XL > Xc
B. XL < Xc
C. XL = Xc
D. None of these
9 The value of current gain of n-p-n transistor is of the order of
A. tens
B. hundreds
C. thousands
D. ten thousands
10 The sum of positive and negative peak values is called:
A. Instantaneous value
B. Peak value
C. Rms valuie
D. Peak-to peak-value

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  • Iiqra Fatima

    Iiqra Fatima

    25 May 2018

    You should let us practice difficult mcqs ..These are too easy for ECAT level....Thanku

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