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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
Which of the following diode is used for the detection of light
Question # 2
The closed loop gain of the non-inverting amplifier is given by
Question # 3
The circuit which is used to smooth the output voltage of the full-wave rectification is known as
Question # 4
The R1= infinity and R2= 0, then the gain of non-inverting amplifier is
Question # 5
The length of rotating vector (on a certain scale) represents the:
Question # 6
The phase angle of a series RLC circuit at resonance is
Question # 7
If we connect a A.C. volt meter to read A.C. voltage, It would read its:
Question # 8
At resonance, the phase angle for RLC series resonance circuit equals
Question # 9
Alternating current is produced by a voltage source which polarity:
Question # 10
Electromagnetic waves transmit energy equal to
Question # 11
Chock consumes externally small
Question # 12
In n-p-n transistor, emitter base junction is kept
Question # 13
At higher frequency of the alternating current, the capacitive reactance Xc
Question # 14
When the p-n junction is forward biased its resistance is of the order of
Question # 15
The sum of positive and negative peak values is called:
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 -
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 -
M musman shahid 03 - Jun - 2024 02 Min 53 Sec 30/60
ECAT Physics Chapter 16 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | 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
|
| 2 | In frequency modulation (FM), the carrier waves amplitude |
A. Remains constant
B. Increase
C. Decreases
D. None of these
|
| 3 | Which one of the following is correct? |
A. Vo= 1.414 Vrms
B. Iams= 1.414 Io
C. VO = 10.70 Vrms
D. Both a and b
|
| 4 | The bridge circuit of full wave rectification uses |
A. one diode
B. two diode
C. three diode
D. four diode
|
| 5 | The time interval during which the Voltage source changes its polarity once is known as: |
A. Time period T
B. Half the time period
C. Quarter the time period
D. Two third of the time period
|
| 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 | 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
|
| 8 | OP-AMP has the following input terminals |
A. one
B. two
C. three
D. four
|
| 9 | 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
|
| 10 | In a transistor, if the central region is p-type then this type of transistor is known as |
A. p-n-p transistor
B. n-p-n transistor
C. either of these
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