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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 magnitude of alternative voltage V:
Question # 2
In half wave rectification
Question # 3
The Instantaneous value of alternative current maybe:
Question # 4
Mathematical manipulation of the two quantized states can be best carried if they are represented by
Question # 5
A digital system deals with quantities or variables which have
Question # 6
When either L or C is increased, the resonant frequency of the RLC series circuit
Question # 7
The value of the potential difference across the depletion region for the case of germanium is
Question # 8
Transmitting antenna emits
Question # 9
The closed loop gain of the non-inverting amplifier is given by
Question # 10
An A.C. voltage is applied across the inductor. When the frequency of the voltage is increased, the current
Question # 11
The RMS value of alternating current is:
Question # 12
A diode characteristic curve is a plot between
Question # 13
At higher frequency of the alternating current, the capacitive reactance Xc
Question # 14
Peak value of alternative current is:
Peak value of alternative current is:
Question # 15
At resonance, the impedance of RLC series circuit is
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 -
A Alishba Farooq 09 - Mar - 2024 16 Min 16 Sec 55/60 -
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 most common source of alternating voltage is: |
A. Motor
B. Transformer
C. AC genrator
D. Both (A) and (C)
|
| 2 | In which of the following components, pn-junction is used |
A. light emitting diode
B. photo diode
C. photo voltaic cell
D. all of these
|
| 3 | 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
|
| 4 | The power factor of resonant series circuit is |
A. 1
B. 0
C. -1
D. 0.5
|
| 5 | The output voltage of half wave rectification is in the form of |
A. a smooth curve
B. a smooth wave
C. pulses
D. all of the above
|
| 6 | During each cycle, alternating voltage reaches a peak value |
A. One time
B. Two times
C. Four times
D. A number of times depending on the frequency
|
| 7 | Most OP-AMP operates with |
A. + 6 V supply
B. + 10 V supply
C. + 12 V supply
D. + 24 V supply
|
| 8 | Which of the following diode is used for the detection of light |
A. photo diode
B. light emitting diode
C. photo voltaic cell
D. all of them
|
| 9 | The emitter-base junction of a transistor is forward-biased and collector-base junction is reverse-biased. If the base current is increased, its |
A. Icwill decrease
B. VCEwill increase
C. ICwill increase
D. VCCwill increase
|
| 10 | In free space, the speed of electromagnetic waves is |
A. 3 x 108ms-1
B. 3 x 106ms-1
C. 4 x 107ms-1
D. 3 x 109ms-1
|
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