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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
OP-AMP has the following input terminals
Question # 2
In a normally biased n-p-n transistor, an electron c current IEflows from the
Question # 3
In which of the following components, pn-junction is used
Question # 4
The Instantaneous value of alternative current maybe:
Question # 5
Which one of the following waves belongs to electromagnetic spectrum
Question # 6
For the normal operation of the transistor, its
Question # 7
The closed loop gain of the non-inverting amplifier is given by
Question # 8
In half wave rectification
Question # 9
Unless stated otherwise, when we speak of A.C. meter reading, we usualy mean:
Question # 10
In RLC series circuit, resonance occurs when
Question # 11
At resonance, the impedance of RLC series circuit is
Question # 12
The R1= infinity and R2= 0, then the gain of non-inverting amplifier is
Question # 13
The sum of positive and negative peak values is called:
Question # 14
Which one of the following Electro-magnetic wave have the highest frequency and shortest wave-length
Question # 15
The length of rotating vector (on a certain scale) represents the:
Top Scorers Of ECAT Physics Chapter 16 Alternating Current MCQ`s Test
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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 -
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M Muhammad Rizwan 11 - Jul - 2022 02 Min 39 Sec 45/60 -
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M Muqadas Zahra 13 - Apr - 2022 14 Min 05 Sec 40/60 -
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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 | In a normally biased n-p-n transistor, an electron c current IEflows from the |
A. emitter into the base
B. collector into the base
C. base into collector
D. none of these
|
| 2 | The R1= infinity and R2= 0, then the gain of non-inverting amplifier is |
A. zero
B. infinity
C. one
D. any one of these
|
| 3 | OP-AMP has the following input terminals |
A. one
B. two
C. three
D. four
|
| 4 | At higher frequency of the alternating current, the capacitive reactance Xc |
A. Increases
B. Decreases
C. Remains the same
D. Increases only when the voltage increases
|
| 5 | 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
|
| 6 | 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
|
| 7 | The open loop gain of OP-AMP is of the order of |
A. 102
B. 103
C. 104
D. 105
|
| 8 | At resonance, the phase angle for RLC series resonance circuit equals |
A. 0°
B. 90°
C. 180°
D. 270°
|
| 9 | 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
|
| 10 | A P-N juction or semiconductor diode cannot be used as |
A. A rectifier
B. Detector
C. Oscillator
D. An amplifier
|
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