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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 to derive the current in external circuit when light is incident in the circuit
Question # 2
Which of the following diode is used for the detection of light
Question # 3
During each cycle, alternating voltage reaches a peak value
Question # 4
The length of rotating vector (on a certain scale) represents the:
Question # 5
A signal appears after amplification, at the output terminal with a phase shift of 180° , if it is applied at
Question # 6
A resonance curve for RLC series circuit is a plot of frequency versus
Question # 7
At higher frequency of the alternating current, the capacitive reactance Xc
Question # 8
When the emitter-base junction of a transistor is reverse biased, collector current
Question # 9
Which one of the following Electro-magnetic wave have the highest frequency and shortest wave-length
Question # 10
The basic circuit elements of A.C circuit are
Question # 11
The amplifier which us used to perform mathematical operations electronically is known as
Question # 12
OP-AMP has the following input terminals
Question # 13
A digital system deals with quantities or variables which have
Question # 14
When the pn-junction is forward biased. the current flows through it is of the order of
Question # 15
Which one of the following is correct?
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 | Transmitting antenna emits |
A. Magnetic waves
B. Electric waves
C. Electromagnetic waves
D. Sound waves
|
| 2 | The output voltage of half wave rectification is in the form of |
A. a smooth curve
B. a smooth wave
C. pulses
D. all of the above
|
| 3 | The amplifier which us used to perform mathematical operations electronically is known as |
A. calculator
B. OP-AMP
C. computer
D. any one of them
|
| 4 | 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
|
| 5 | When the emitter-base junction of a transistor is reverse biased, collector current |
A. Reverses
B. Increases
C. Decreases
D. Stops
|
| 6 | A signal is amplified at the output without any change of phase, if it is applied at the |
A. inverting input
B. non-inverting input
C. at any of the input
D. none of these
|
| 7 | The value of the potential difference across the depletion region for the case of germanium is |
A. 0.3 V
B. 0.5 V
C. 0.7 V
D. 0.9 V
|
| 8 | SI unit of impedance is |
A. hertz
B. henry
C. ampere
D. ohms
|
| 9 | Which of the following diode is used to derive the current in external circuit when light is incident in the circuit |
A. photo diode
B. light emitting diode
C. photo voltaic cell
D. none of these
|
| 10 | 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
|
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