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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
The closed loop gain of the inverting amplifier is written as
Question # 2
The open loop gain of OP-AMP is of the order of
Question # 3
If the value of C in a series RLC circuit is increased, the resonant frequency
Question # 4
The value of output resistance of OP-AMOP is of the order of
Question # 5
The bridge circuit of full wave rectification uses
Question # 6
In RLC series circuit, resonance occurs when
Question # 7
In which of the following components, pn-junction is used
Question # 8
At higher frequency of the alternating current, the capacitive reactance Xc
Question # 9
In a normally biased n-p-n transistor, an electron c current IEflows from the
Question # 10
During the positive half-cycle in the half-wave rectification,the diode
Question # 11
For a n-p-n transistor, the conventional current equation can be written as
Question # 12
During each cycle, alternating voltage reaches a peak value
Question # 13
A diode characteristic curve is a plot between
Question # 14
The Instantaneous value of alternative current maybe:
Question # 15
The input resistance of the OP-AMP is the resistance between the
Top Scorers Of ECAT Physics Chapter 16 Alternating Current MCQ`s Test
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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 -
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M Muhammad Rizwan 11 - Jul - 2022 02 Min 39 Sec 45/60 -
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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 | If the value of C in a series RLC circuit is increased, the resonant frequency |
A. Is not affected
B. Increase
C. Remains the same
D. Decreases
|
| 2 | 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
|
| 3 | 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
|
| 4 | In series RC circuit when R=Xc, then the phase angle is |
A. 0°
B. 90°
C. 70°
D. 45°
|
| 5 | In n-p-n transistor, emitter base junction is kept |
A. reversed
B. forward biased
C. may be reversed or may be forward biased
D. none of these
|
| 6 | In which of the following diodes when an electron combines with a hole during the forward biasing, photon of visible light is emitted. |
A. photo diode
B. light emitting diode
C. photo voltaic cell
D. all of them
|
| 7 | When the p-n junction is forward biased its resistance is of the order of |
A. few mega ohms
B. few kilo ohms
C. few ohms
D. few milli ohms
|
| 8 | The value of current gain of n-p-n transistor is of the order of |
A. tens
B. hundreds
C. thousands
D. ten thousands
|
| 9 | At resonance, the phase angle for RLC series resonance circuit equals |
A. 0°
B. 90°
C. 180°
D. 270°
|
| 10 | The impedance of RLC series resonance circuit at resonant frequency is |
A. Greater than R
B. Equal to R
C. Less than R
D. None 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