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MCQ's Test For ECAT Physics Chapter 16 Alternating Current
Try The MCQ's Test For ECAT Physics Chapter 16 Alternating Current
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Total Questions15
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Time Allowed20
ECAT Physics Chapter 16 Alternating Current
00:00
Question # 1
If we connected the ordinary DC ammeter to measure alternating current, it would measure its:
Question # 2
Most OP-AMP operates with
Question # 3
The bridge circuit of full wave rectification uses
Question # 4
Which one of the following is correct?
Question # 5
Which of the following diodes can operate in the reverse biased condition
Question # 6
The value of the input resistance of OP-AMP is of the order of
Question # 7
Which of the following diode is used for the detection of light
Question # 8
The most common source of alternating voltage is:
Question # 9
Chock consumes externally small
Question # 10
The basic circuit element in A.C. circuits are:
Question # 11
Alternating current can be transmitted:
Question # 12
In RLC series circuit, resonance occurs when
Question # 13
During each cycle, alternating voltage reaches a peak value
Question # 14
For normal operation of transistor, the batteries
Question # 15
Nowadays, Most of the electric energy is produced by the A.C. generators using:
Top Scorers Of ECAT Physics Chapter 16 Alternating Current MCQ`s Test
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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 -
M Muneeb ur Rehman 29 - Jun - 2026 01 Min 47 Sec 56/60 -
A Abdullah Baloch 02 - Aug - 2024 02 Min 33 Sec 55/60 -
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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
ECAT Physics Chapter 16 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | The value of output resistance of OP-AMOP is of the order of |
A. few ohms
B. few hundred ohms
C. several kilo ohms
D. several mega ohms
|
| 2 | The total reactance of a series RLC circuit at resonance is |
A. zero
B. Equal to the resistance
C. Infinity
D. Capacitive
|
| 3 | 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 |
A. base and emitter
B. collector and emitter
C. base and collector
D. any one of these
|
| 4 | Which of the following diodes can operate in the reverse biased condition |
A. photo diode
B. light emitting diode
C. photo voltaic cell
D. none of these
|
| 5 | Average value of A.C voltage during one cycle is |
A. 1
B. Zero
C. Maximum
D. Variable
|
| 6 | Which of the following diode is used to derive the current in external circuit when light is incident in the circuit |
A. photo diode
B. light emitting diode
C. photo voltaic cell
D. none of these
|
| 7 | A sinusoidally alternating voltage or current can be graphically represented by a: |
A. Vector
B. Rotating vector
C. Clockwise vector
D. Anticlockwise voltage vector
|
| 8 | In series RC circuit when R=Xc, then the phase angle is |
A. 0°
B. 90°
C. 70°
D. 45°
|
| 9 | During the negative half-cycle of the half-wave rectification, the diode |
A. does not conduct
B. conducts
C. either of these
D. none of these
|
| 10 | 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
|
Test Questions
Share your comments & questions here
Iiqra Fatima
25 May 2018You should let us practice difficult mcqs ..These are too easy for ECAT level....Thanku