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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
Most OP-AMP operates with
Question # 3
The magnitude of alternative voltage V:
Question # 4
The value of the potential difference across the depletion region for the case of germanium is
Question # 5
In which of the following components, pn-junction is used
Question # 6
The basic circuit element in D.C. circuit is:
Question # 7
In series RC circuit when R=Xc, then the phase angle is
Question # 8
When either L or C is increased, the resonant frequency of the RLC series circuit
Question # 9
In a transistor, if the central region is n-type, then this type of transistor is known as
Question # 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
Question # 11
The total reactance of a series RLC circuit at resonance is
Question # 12
In n-p-n transistor, emitter base junction is kept
Question # 13
A P-N juction or semiconductor diode cannot be used as
Question # 14
Electromagnetic waves transmit energy equal to
Question # 15
If the value of C in a series RLC circuit is increased, the resonant frequency
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 -
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 -
M Muhammad Muzammil 11 - Mar - 2024 02 Min 14 Sec 30/60
ECAT Physics Chapter 16 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | The phase angle of a series RLC circuit at resonance is |
A. 180°
B. 90°
C. 0°
D. None of the these
|
| 2 |
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)
|
| 3 | 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
|
| 4 | During the positive half-cycle in the half-wave rectification,the diode |
A. does not conduct
B. conducts
C. either of these
D. neither of these
|
| 5 | In series RC circuit when R=Xc, then the phase angle is |
A. 0°
B. 90°
C. 70°
D. 45°
|
| 6 | The highest value reached by the voltage or current: |
A. In quarter cycle is called Instantaneous value
B. In half cycle is called peak-to-peak value
C. In one cycle is called peak value
D. In half cycle is called Instantaneous value
|
| 7 | The value of the potential difference across the depletion region for the case of germanium is |
A. 0.3 V
B. 0.5 V
C. 0.7 V
D. 0.9 V
|
| 8 | The wave form of alternating voltage is the graph between: |
A. Voltage across X-axis and time across y-axis
B. Current and time
C. Voltage along y-axis and time along x-axis
D. Voltage and current
|
| 9 | If 250V is the RMS value of alternative voltage, then its peak value Vowill be: |
A. 353.5V
B. 250V
C. 175V
D. zero
|
| 10 | The length of rotating vector (on a certain scale) represents the: |
A. Peak value of alternating quantity
B. RMS value of alternating quantity
C. Instantaneous value of alternating quantity
D. Either (B) or (C)
|
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