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

  • Total Questions15

  • Time Allowed20

Start Test Download PDF

ECAT Physics Chapter 16 Alternating Current

00:00
Question # 1

When a transistor is used as a switch the circuit in which the current is to be switched OFF and ON, is connected between the

Question # 2

When electrons in the transmitting antenna vibrate 94000 time per second, they produce radiowaves having frequency

Question # 3

The value of the input resistance of OP-AMP is of the order of

Question # 4

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

Question # 5

Which of the following diode is used to derive the current in external circuit when light is incident in the circuit

Question # 6

In series RC circuit when R=Xc, then the phase angle is

Question # 7

The closed loop gain of the non-inverting amplifier is given by

Question # 8

For the normal operation of the transistor, its

Question # 9

The total reactance of a series RLC circuit at resonance is

Question # 10

At resonance, the impedance of RLC series circuit is

Question # 11

In free space, the speed of electromagnetic waves is

Question # 12

The output voltage of half wave rectification is in the form of

Question # 13

The Instantaneous value of alternative current maybe:

Question # 14

In half wave rectification

Question # 15

The closed loop gain of the inverting amplifier is written as

Submit

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


Topic Test

00:00
Submit

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

  • S
    Sana Hashim 20 - May - 2022 00 Min 05 Sec 60/60
  • A
    Anayat Ali 26 - Mar - 2024 00 Min 06 Sec 60/60
  • H
    Heer 02 - Jan - 2024 00 Min 42 Sec 60/60
  • Q
    Qura-tul-Ain Ansari 13 - Mar - 2023 06 Min 42 Sec 60/60
  • A
    Abdullah Baloch 02 - Aug - 2024 02 Min 33 Sec 55/60
  • A
    Alishba Farooq 09 - Mar - 2024 16 Min 16 Sec 55/60
  • D
    dark goblin 19 - Jul - 2024 00 Min 39 Sec 50/60
  • S
    suzi 10 - Feb - 2026 01 Min 47 Sec 48/60
  • M
    Muhammad Rizwan 11 - Jul - 2022 02 Min 39 Sec 45/60
  • S
    Sarmad 18 - Jun - 2022 07 Min 03 Sec 45/60
  • H
    HAMZA Shah 20 - Sep - 2021 01 Min 11 Sec 40/60
  • M
    Muqadas Zahra 13 - Apr - 2022 14 Min 05 Sec 40/60
  • S
    Shaeel Fatima 24 - Feb - 2023 01 Min 10 Sec 35/60
  • T
    tehreemnadeem 11 - Jul - 2022 04 Min 13 Sec 35/60
  • M
    Muhammad Muzammil 11 - Mar - 2024 02 Min 14 Sec 30/60

ECAT Physics Chapter 16 Important MCQ's

Sr.# Question Answer
1 Most OP-AMP operates with
A. + 6 V supply
B. + 10 V supply
C. + 12 V supply
D. + 24 V supply
2 Which of the following has a great concentration of impurity
A. base
B. emitter
C. collector
D. none of these
3 The impedance of RLC series resonance circuit at resonant frequency is
A. Greater than R
B. Equal to R
C. Less than R
D. None of these
4 SI unit of impedance is
A. hertz
B. henry
C. ampere
D. ohms
5 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
6 When the pn-junction is in reversed biased, current flows through the junction due to the
A. majority carriers
B. minority carriers
C. either of them
D. none of them
7 A signal appears after amplification, at the output terminal with a phase shift of 180° , if it is applied at
A. inverting input
B. non-inverting input
C. any one of the input terminal
D. none of them
8 The closed loop gain of the non-inverting amplifier is given by
A. G = R2/R1
B. G = -R2/R1
C. G = 1 - R2/R1
D. G = 1 + T2/R1
9 The RMS value of alternating current is:
A. 0.7 times at the peak value
B. 0.5 times the peak value
C. 0.7 times the Instantaneous value
D. Equal to maximum voltage
10 When electrons in the transmitting antenna vibrate 94000 time per second, they produce radiowaves having frequency
A. 9.4 kHz
B. 940 kHz
C. 94 kHz
D. None of these

Test Questions

Is this page helpful?