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

A signal appears after amplification, at the output terminal with a phase shift of 180° , if it is applied at

Question # 2

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

Question # 3

The device which allows only the flow of an A.C. through a circuit is

Question # 4

The total reactance of a series RLC circuit at resonance is

Question # 5

For normal operation of transistor, the batteries

Question # 6

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

Question # 7

During the positive half-cycle in the half-wave rectification,the diode

Question # 8

Which of the following has a great concentration of impurity

Question # 9

Alternating current can be transmitted:

Question # 10

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

Question # 11

When the pn-junction is connected reversed biased, its resistance is of the order of

Question # 12

The Instantaneous value of alternative current maybe:

Question # 13

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

Question # 14

A p-n junction is formed when a crystal of silicon is growth in such a way that its one half is doped with trivalent impurity and the other half with a impurity from

Question # 15

The highest value reached by the voltage or current:

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 Nowadays, Most of the electric energy is produced by the A.C. generators using:
A. Hydal water
B. Geothermal energy
C. Solar energy
D. Biomass
2 Which one of the following waves belongs to electromagnetic spectrum
A. Radio and TV waves
B. Radar waves
C. Micro waves
D. All of them
3 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
4 The wave form of alternating voltage is the graph between:
A. Voltage across X-axis and time across y-axis
B. Current and time
C. Voltage along y-axis and time along x-axis
D. Voltage and current
5 In describing functions of digital systems, a closed switch will be shown as
A. 0
B. 1
C. low
D. any one of these
6 Chock consumes externally small
A. Charge
B. Current
C. Power
D. Potential
7 If 250V is the RMS value of alternative voltage, then its peak value Vowill be:
A. 353.5V
B. 250V
C. 175V
D. zero
8 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
9 The Instantaneous value of alternative current maybe:
A. The same as its RMS value
B. Greater than its Rms value
C. The same as its peak value
D. Any of these
10 The basic circuit elements of A.C circuit are
A. Resistor
B. Inductor
C. Capacitor
D. All the three

Test Questions

Is this page helpful?