ECAT Pre Engineering Physics Chapter 16 MCQ Test With Answer

MCQ's Test For Physics ECAT Pre Engineering Chapter 16 Alternating Current

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

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Physics ECAT Pre Engineering Chapter 16 Alternating Current

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Question # 1

The basic circuit elements of A.C circuit are

Question # 2

The waveform of alternating voltage is a:

Question # 3

The highest value reached by the voltage or current:

Question # 4

The alternative voltage of current is actually measured by:

Question # 5

Mathematical manipulation of the two quantized states can be best carried if they are represented by

Question # 6

An A.C varies as a function of

Question # 7

Which one of the following is correct?

Question # 8

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

Question # 9

If the value of C in a series RLC circuit is increased, the resonant frequency

Question # 10

In describing functions of digital systems, a closed switch will be shown as

Question # 11

The most common source of alternating voltage is:

Question # 12

During each cycle, alternating voltage reaches a peak value

Question # 13

Nowadays, Most of the electric energy is produced by the A.C. generators using:

Question # 14

The bridge circuit of full wave rectification uses

Question # 15

The value of output resistance of OP-AMOP is of the order of

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ECAT Physics Chapter 16 Important MCQ's

Sr.# Question Answer
1 Chock consumes externally small
A. Charge
B. Current
C. Power
D. Potential
2 The value of output resistance of OP-AMOP is of the order of
A. few ohms
B. few hundred ohms
C. several kilo ohms
D. several mega ohms
3 Average value of A.C voltage during one cycle is
A. 1
B. Zero
C. Maximum
D. Variable
4 The value of the input resistance of OP-AMP is of the order of
A. few ohms
B. few hundred ohms
C. several kilo ohms
D. several maga ohms
5 In which of the following components, pn-junction is used
A. light emitting diode
B. photo diode
C. photo voltaic cell
D. all of these
6 The basic circuit element in D.C. circuit is:
A. A capacitor
B. A resistor
C. An inductor
D. Both (A) and (C)
7 The value of the potential difference across the depletion region for the case of germanium is
A. 0.3 V
B. 0.5 V
C. 0.7 V
D. 0.9 V
8 An A.C. voltmeter read 250 volts. The frequency of alternating is 50 Hz, the peak value of voltage is
A. 3525.0 volts
B. 35.35 volts
C. 353.5 volts
D. 3.535 volts
9 The entire wave form of sinusoidal voltage is actually a set of all the:
A. Positive maximum value + Voand negative maximum value -Vo
B. Posiotive maximum value +Vo and zero
C. Zero and negative maximum value -Vo
D. Any of these
10 Which of the following diodes can operate in the reverse biased condition
A. photo diode
B. light emitting diode
C. photo voltaic cell
D. none of these

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