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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
A resonance curve for RLC series circuit is a plot of frequency versus
Question # 2
The highest value reached by the voltage or current:
Question # 3
The open loop gain of OP-AMP is of the order of
Question # 4
The closed loop gain of the inverting amplifier is written as
Question # 5
When electrons in the transmitting antenna vibrate 94000 time per second, they produce radiowaves having frequency
Question # 6
To design a resonant circuit of frequency 100 KHz with an inductor of inductance 5 mH, we need a capacitor of capacitance
Question # 7
The emitter-base junction of a transistor is forward-biased and collector-base junction is reverse-biased. If the base current is increased, its
Question # 8
In a normally biased n-p-n transistor, an electron c current IEflows from the
Question # 9
In a transistor, if the central region is n-type, then this type of transistor is known as
Question # 10
In half wave rectification
Question # 11
If the value of C in a series RLC circuit is increased, the resonant frequency
Question # 12
The value of the potential difference across the depletion region for the case of germanium is
Question # 13
A diode characteristic curve is a plot between
Question # 14
Most OP-AMP operates with
Question # 15
In which of the following components, pn-junction is used
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 | 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
|
| 2 | 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
|
| 3 |
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)
|
| 4 | 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
|
| 5 | The alternative voltage of current is actually measured by: |
A. Its RMS value
B. Square root of its mean square value
C. Instantaneous value
D. Peak value
|
| 6 | 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
|
| 7 | 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
|
| 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 | When either L or C is increased, the resonant frequency of the RLC series circuit |
A. Increases
B. Decreases
C. Remains the same
D. Becomes zero
|
| 10 | An A.C varies as a function of |
A. Current
B. Voltage
C. Time
D. Charge
|
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