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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
When either L or C is increased, the resonant frequency of the RLC series circuit
Question # 2
The sum of positive and negative peak values is called:
Question # 3
If the value of C in a series RLC circuit is increased, the resonant frequency
Question # 4
The wave form of alternating voltage is the graph between:
Question # 5
The value of the input resistance of OP-AMP is of the order of
Question # 6
The Instantaneous value of alternative current maybe:
Question # 7
At higher frequency of the alternating current, the capacitive reactance Xc
Question # 8
In which of the following diodes when an electron combines with a hole during the forward biasing, photon of visible light is emitted.
Question # 9
The impedance of RLC series resonance circuit at resonant frequency is
Question # 10
Which of the following has a great concentration of impurity
Question # 11
The output voltage of half wave rectification is in the form of
Question # 12
The highest value reached by the voltage or current:
Question # 13
At resonance frequency the impedance of parallel resonance circuit is
Question # 14
The value of output resistance of OP-AMOP is of the order of
Question # 15
The circuit which is used to smooth the output voltage of the full-wave rectification is known as
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 -
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 basic circuit element in D.C. circuit is: |
A. A capacitor
B. A resistor
C. An inductor
D. Both (A) and (C)
|
| 2 | A signal is amplified at the output without any change of phase, if it is applied at the |
A. inverting input
B. non-inverting input
C. at any of the input
D. none of these
|
| 3 | The total reactance of a series RLC circuit at resonance is |
A. zero
B. Equal to the resistance
C. Infinity
D. Capacitive
|
| 4 | Which of the following has a great concentration of impurity |
A. base
B. emitter
C. collector
D. none of these
|
| 5 | To design a resonant circuit of frequency 100 KHz with an inductor of inductance 5 mH, we need a capacitor of capacitance |
A. 5.07 pF
B. 50 pF
C. 0.507 pF
D. 507 pF
|
| 6 | 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
|
| 7 | At resonance, the phase angle for RLC series resonance circuit equals |
A. 0°
B. 90°
C. 180°
D. 270°
|
| 8 | In a transistor, the central region is called |
A. collector
B. emitter
C. base
D. none of them
|
| 9 | In series RC circuit when R=Xc, then the phase angle is |
A. 0°
B. 90°
C. 70°
D. 45°
|
| 10 | 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
|
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