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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
If 250V is the RMS value of alternative voltage, then its peak value Vowill be:
Question # 2
The total reactance of a series RLC circuit at resonance is
Question # 3
An A.C varies as a function of
Question # 4
A diode characteristic curve is a plot between
Question # 5
The impedance of RLC series resonance circuit at resonant frequency is
Question # 6
If the value of C in a series RLC circuit is increased, the resonant frequency
Question # 7
In a transistor, the central region is called
Question # 8
When electrons in the transmitting antenna vibrate 94000 time per second, they produce radiowaves having frequency
Question # 9
The device which allows only the flow of an A.C. through a circuit is
Question # 10
In frequency modulation (FM), the carrier waves amplitude
Question # 11
SI unit of impedance is
Question # 12
The R1= infinity and R2= 0, then the gain of non-inverting amplifier is
Question # 13
In a transistor, if the central region is p-type then this type of transistor is known as
Question # 14
A resonance curve for RLC series circuit is a plot of frequency versus
Question # 15
The wave form of alternating voltage is the graph between:
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 | Nowadays, Most of the electric energy is produced by the A.C. generators using: |
A. Hydal water
B. Geothermal energy
C. Solar energy
D. Biomass
|
| 2 | The phase angle of a series RLC circuit at resonance is |
A. 180°
B. 90°
C. 0°
D. None of the these
|
| 3 | Transmitting antenna emits |
A. Magnetic waves
B. Electric waves
C. Electromagnetic waves
D. Sound waves
|
| 4 | The total reactance of a series RLC circuit at resonance is |
A. zero
B. Equal to the resistance
C. Infinity
D. Capacitive
|
| 5 | The input resistance of the OP-AMP is the resistance between the |
A. (-) input and output
B. (+) input and output
C. (-) and (+) inputs
D. between any inputs
|
| 6 | 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
|
| 7 | 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
|
| 8 | Mathematical manipulation of the two quantized states can be best carried if they are represented by |
A. high - low
B. yes - no
C. on - off
D. 0 - 1
|
| 9 | If we connect a A.C. volt meter to read A.C. voltage, It would read its: |
A. RMS value
B. Instantaneous value
C. Valued average over a cycle
D. Zero
|
| 10 | 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
|
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