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

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

Question # 2

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

Question # 3

The sum of positive and negative peak values is called:

Question # 4

The r.m.s. value of alternating current is equal to its maximum value at angle of

Question # 5

In a normally biased n-p-n transistor, an electron c current IEflows from the

Question # 6

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

Question # 7

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

Question # 8

The length of rotating vector (on a certain scale) represents the:

Question # 9

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

Question # 10

In free space, the speed of electromagnetic waves is

Question # 11

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

Question # 12

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

Question # 13

The total reactance of a series RLC circuit at resonance is

Question # 14

An A.C. voltmeter read 250 volts. The frequency of alternating is 50 Hz, the peak value of voltage is

Question # 15

A signal is amplified at the output without any change of phase, if it is applied at the

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
  • 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
  • M
    musman shahid 03 - Jun - 2024 02 Min 53 Sec 30/60

ECAT Physics Chapter 16 Important MCQ's

Sr.# Question Answer
1 The device which allows only the flow of an A.C. through a circuit is
A. Capacitor
B. Inductor
C. D.C. motor
D. Battery
2 The closed loop gain of the inverting amplifier is written as
A. G = R2/R1
B. G = 1 + R2/R1
C. G = -R2/R1
D. G = 1 - R2/R1
3 Unless stated otherwise, when we speak of A.C. meter reading, we usualy mean:
A. Peak value
B. RMS value
C. Instantaneous value
D. Peak-to-peak value
4 Due to the high value of the input resistance, practically, the value of the current which flows between the input terminals is
A. zero
B. small
C. large
D. very large
5 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
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 SI unit of impedance is
A. hertz
B. henry
C. ampere
D. ohms
8 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
9 The amplifier which us used to perform mathematical operations electronically is known as
A. calculator
B. OP-AMP
C. computer
D. any one of them
10 Chock consumes externally small
A. Charge
B. Current
C. Power
D. Potential

Test Questions

Is this page helpful?

Share your comments & questions here

Guest
  • Iiqra Fatima

    Iiqra Fatima

    25 May 2018

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

    Like
    Reply