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

  • Total Questions15

  • Time Allowed20

Start Test Download PDF

Physics ECAT Pre Engineering Chapter 16 Alternating Current

00:00
Question # 1

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

Question # 2

Alternating current is produced by a voltage source which polarity:

Question # 3

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

Question # 4

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

Question # 5

When the p-n junction is forward biased its resistance is of the order of

Question # 6

In which of the following components, pn-junction is used

Question # 7

The amplifier which us used to perform mathematical operations electronically is known as

Question # 8

When the emitter-base junction of a transistor is reverse biased, collector current

Question # 9

During each cycle, alternating voltage reaches a peak value

Question # 10

The sum of positive and negative peak values is called:

Question # 11

The basic circuit element in D.C. circuit is:

Question # 12

The emitter-base junction of a transistor is forward-biased and collector-base junction is reverse-biased. If the base current is increased, its

Question # 13

A resonance curve for RLC series circuit is a plot of frequency versus

Question # 14

The impedance of RLC series resonance circuit at resonant frequency is

Question # 15

A changing magnetic flux creates around itself

Submit

Prepare Complete Set Wise Physics ECAT Pre Engineering Chapter 16 Alternating Current MCQs Online With Answers


Topic Test

00:00
Submit

Top Scorers Of Physics ECAT Pre Engineering Chapter 16 Alternating Current MCQ`s Test

  • F
    Farzand Shah Farzand Shah 01 - Jun - 2024 00 Min 49 Sec 60/60
  • F
    Faisal Mehar 24 - May - 2024 01 Min 22 Sec 60/60
  • B
    Bilal Javed 10 - Mar - 2024 02 Min 10 Sec 60/60
  • H
    Huzaifa Asim 25 - May - 2024 04 Min 21 Sec 60/60
  • U
    uzma majeed 12 - Mar - 2024 03 Min 28 Sec 55/60
  • V
    Viral Edits 29 - May - 2024 04 Min 41 Sec 50/60
  • M
    Muhammad Sufyan 01 - Jun - 2024 00 Min 08 Sec 45/60
  • H
    Hamza Mughal 21 - Mar - 2024 02 Min 02 Sec 45/60
  • A
    Abdullah Zubair 07 - Jan - 2025 02 Min 53 Sec 45/60
  • K
    Kazim Ali 15 - May - 2024 03 Min 10 Sec 45/60
  • M
    Mateen Jadoon 10 - Aug - 2024 04 Min 07 Sec 45/60
  • M
    Munir Ahmad 15 - May - 2024 04 Min 42 Sec 45/60
  • U
    Umaima Saeed 29 - May - 2024 06 Min 32 Sec 45/60
  • A
    Ayra Arshad 06 - Jul - 2024 01 Min 58 Sec 35/60
  • B
    Barira Fatima 26 - May - 2024 03 Min 55 Sec 35/60

ECAT Physics Chapter 16 Important MCQ's

Sr.# Question Answer
1 In a transistor, if the central region is p-type then this type of transistor is known as
A. p-n-p transistor
B. n-p-n transistor
C. either of these
D. none of these
2 The emitter-base junction of a transistor is forward-biased and collector-base junction is reverse-biased. If the base current is increased, its
A. Icwill decrease
B. VCEwill increase
C. ICwill increase
D. VCCwill increase
3 The power factor of resonant series circuit is
A. 1
B. 0
C. -1
D. 0.5
4 In a normally biased n-p-n transistor, an electron c current IEflows from the
A. emitter into the base
B. collector into the base
C. base into collector
D. none of these
5 The magnitude of alternative voltage V:
A. Always increase
B. Always decrease
C. Remains constant
D. Does not remain constant
6 The input resistance of the OP-AMP is the resistance between the
A. (-) input and output
B. (+) input and output
C. (-) and (+) inputs
D. between any inputs
7 For the normal operation of the transistor, its
A. emitter-base and collector base junctions are forward biased
B. emitter-base junction is reversed biased and collector base junction is forward biased
C. emitter-base junction is forward biased and collector-base junction is reverse biased
D. any one of these
8 During the negative half-cycle of the half-wave rectification, the diode
A. does not conduct
B. conducts
C. either of these
D. none of these
9 Mathematical manipulation of the two quantized states can be best carried if they are represented by
A. high - low
B. yes - no
C. on - off
D. 0 - 1
10 In series RC circuit when R=Xc, then the phase angle is
A. 0°
B. 90°
C. 70°
D. 45°

Test Questions

Is this page helpful?

Share your comments & questions here

Guest

  • No comments yet. Be the first to comment!