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

In frequency modulation (FM), the carrier waves amplitude

Question # 2

Conversion of alternating current into direct current is called

Question # 3

SI unit of impedance is

Question # 4

The Instantaneous value of alternative current maybe:

Question # 5

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

Question # 6

The R1= infinity and R2= 0, then the gain of non-inverting amplifier is

Question # 7

A changing magnetic flux creates around itself

Question # 8

The power factor of resonant series circuit is

Question # 9

The highest value reached by the voltage or current:

Question # 10

In RLC series circuit, resonance occurs when

Question # 11

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

Question # 12

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 # 13

The value of the potential difference across the depletion region for the case of germanium is

Question # 14

At resonance, the impedance of RLC series circuit is

Question # 15

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

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
  • K
    Khudeeja Iftikhar 09 - Mar - 2024 01 Min 19 Sec 50/60
  • 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

ECAT Physics Chapter 16 Important MCQ's

Sr.# Question Answer
1 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
2 Chock consumes externally small
A. Charge
B. Current
C. Power
D. Potential
3 Peak value of alternative current is:
A. one of its Instantaneous value
B. Equal to its RMS value
C. The same as its peak-to-peak value
D. Both (B) and (C)
4 SI unit of impedance is
A. hertz
B. henry
C. ampere
D. ohms
5 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
6 Which of the following has a great concentration of impurity
A. base
B. emitter
C. collector
D. none of these
7 When the pn-junction is forward biased. the current flows through it is of the order of
A. mili-amperes
B. amperes
C. nano-amperes
D. micro-amperes
8 In a transistor, the central region is called
A. collector
B. emitter
C. base
D. none of them
9 For a n-p-n transistor, the conventional current equation can be written as
A. IE+ IC= IB
B. IC- IB= IE
C. IC+ IB= IE
D. IB+ IE= IC
10 In a transistor, if the central region is n-type, then this type of transistor is known as
A. n-p-n transistor
B. p-n-p transistor
C. either of these
D. none of these

Test Questions

Is this page helpful?

Share your comments & questions here

Guest

  • No comments yet. Be the first to comment!