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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 signal is amplified at the output without any change of phase, if it is applied at the
Question # 2
A signal appears after amplification, at the output terminal with a phase shift of 180° , if it is applied at
Question # 3
The basic circuit element in A.C. circuits are:
Question # 4
In describing functions of digital systems, a closed switch will be shown as
Question # 5
Which of the following diode is used to derive the current in external circuit when light is incident in the circuit
Question # 6
Which of the following diodes can operate in the reverse biased condition
Question # 7
If the value of C in a series RLC circuit is increased, the resonant frequency
Question # 8
The power factor of resonant series circuit is
Question # 9
In a transistor, the central region is called
Question # 10
The R1= infinity and R2= 0, then the gain of non-inverting amplifier is
Question # 11
The wave form of alternating voltage is the graph between:
Question # 12
In an A.C circuit with resistor only, the current and voltage have a phase angle of
Question # 13
An A.C. voltage is applied across the inductor. When the frequency of the voltage is increased, the current
Question # 14
The magnitude of alternative voltage V:
Question # 15
The basic circuit elements of A.C circuit are
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 -
M Muneeb ur Rehman 29 - Jun - 2026 01 Min 47 Sec 56/60 -
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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 -
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 | A resonance curve for RLC series circuit is a plot of frequency versus |
A. Voltage
B. Current
C. Impedance
D. Reactance
|
| 2 | The closed loop gain of the inverting amplifier is written as |
A. G = R2/R1
B. G = 1 + R2/R1
C. G = -R2/R1
D. G = 1 - R2/R1
|
| 3 | In a transistor, if the central region is n-type, then this type of transistor is known as |
A. n-p-n transistor
B. p-n-p transistor
C. either of these
D. none of these
|
| 4 | At resonance, the phase angle for RLC series resonance circuit equals |
A. 0°
B. 90°
C. 180°
D. 270°
|
| 5 | 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
|
| 6 | The sum of positive and negative peak values is called: |
A. Instantaneous value
B. Peak value
C. Rms valuie
D. Peak-to peak-value
|
| 7 | A digital system deals with quantities or variables which have |
A. only one state
B. only two discrete states
C. three discrete states
D. four discrete states
|
| 8 | The length of rotating vector (on a certain scale) represents the: |
A. Peak value of alternating quantity
B. RMS value of alternating quantity
C. Instantaneous value of alternating quantity
D. Either (B) or (C)
|
| 9 | The wave form of alternating voltage is the graph between: |
A. Voltage across X-axis and time across y-axis
B. Current and time
C. Voltage along y-axis and time along x-axis
D. Voltage and current
|
| 10 | In RLC series circuit, resonance occurs when |
A. XL > Xc
B. XL < Xc
C. XL = Xc
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