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

Which one of the following waves belongs to electromagnetic spectrum

Question # 2

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

Question # 3

At resonance, the impedance of RLC series circuit is

Question # 4

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

Question # 5

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

Question # 6

When the pn-junction is in reversed biased, current flows through the junction due to the

Question # 7

If we connect a A.C. volt meter to read A.C. voltage, It would read its:

Question # 8

In half wave rectification

Question # 9

Which of the following diodes can operate in the reverse biased condition

Question # 10

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

Question # 11

Transmitting antenna emits

Question # 12

Conversion of alternating current into direct current is called

Question # 13

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

Question # 14

Alternating current is produced by a voltage source which polarity:

Question # 15

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

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 When either L or C is increased, the resonant frequency of the RLC series circuit
A. Increases
B. Decreases
C. Remains the same
D. Becomes zero
2 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
3 Conversion of alternating current into direct current is called
A. amplification
B. rectification
C. conduction
D. polarization
4 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
5 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
6 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
7 The power factor of resonant series circuit is
A. 1
B. 0
C. -1
D. 0.5
8 In half wave rectification
A. both halves of the input voltage is used
B. only one half of the input voltage is used
C. either of these
D. none of these
9 Most OP-AMP operates with
A. + 6 V supply
B. + 10 V supply
C. + 12 V supply
D. + 24 V supply
10 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

Test Questions

Is this page helpful?