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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 phase angle of a series RLC circuit at resonance is
Question # 2
The entire wave form of sinusoidal voltage is actually a set of all the:
Question # 3
During the negative half-cycle of the half-wave rectification, the diode
Question # 4
In half wave rectification
Question # 5
For a n-p-n transistor, the conventional current equation can be written as
Question # 6
At resonance, the impedance of RLC series circuit is
Question # 7
The RMS value of alternating current is:
Question # 8
In describing functions of digital systems, a closed switch will be shown as
Question # 9
The value of the input resistance of OP-AMP is of the order of
Question # 10
The sum of positive and negative peak values is called:
Question # 11
When electrons in the transmitting antenna vibrate 94000 time per second, they produce radiowaves having frequency
Question # 12
During the positive half-cycle in the half-wave rectification,the diode
Question # 13
In RLC series circuit, resonance occurs when
Question # 14
For the normal operation of the transistor, its
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 -
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 | In n-p-n transistor, emitter base junction is kept |
A. reversed
B. forward biased
C. may be reversed or may be forward biased
D. none of these
|
| 2 | Average value of A.C voltage during one cycle is |
A. 1
B. Zero
C. Maximum
D. Variable
|
| 3 | 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
|
| 4 | A signal appears after amplification, at the output terminal with a phase shift of 180° , if it is applied at |
A. inverting input
B. non-inverting input
C. any one of the input terminal
D. none of them
|
| 5 | Electromagnetic waves transmit energy equal to |
A. 1/2 mv2
B. moc2
C. hf/c
D. hf
|
| 6 | 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
|
| 7 | A p-n junction is formed when a crystal of silicon is growth in such a way that its one half is doped with trivalent impurity and the other half with a impurity from |
A. 2nd group
B. fourth group
C. fifth group
D. sixth group
|
| 8 | The basic circuit elements of A.C circuit are |
A. Resistor
B. Inductor
C. Capacitor
D. All the three
|
| 9 | The closed loop gain of the non-inverting amplifier is given by |
A. G = R2/R1
B. G = -R2/R1
C. G = 1 - R2/R1
D. G = 1 + T2/R1
|
| 10 | Transmitting antenna emits |
A. Magnetic waves
B. Electric waves
C. Electromagnetic waves
D. Sound waves
|
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