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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 Instantaneous value of alternative current maybe:
Question # 2
For normal operation of transistor, the batteries
Question # 3
The wave form of alternating voltage is the graph between:
Question # 4
OP-AMP has the following input terminals
Question # 5
In an A.C circuit with resistor only, the current and voltage have a phase angle of
Question # 6
If we connected the ordinary DC ammeter to measure alternating current, it would measure its:
Question # 7
The open loop gain of OP-AMP is of the order of
Question # 8
Peak value of alternative current is:
Peak value of alternative current is:
Question # 9
Average value of A.C voltage during one cycle is
Question # 10
A sinusoidally alternating voltage or current can be graphically represented by a:
Question # 11
When a transistor is used as a switch the circuit in which the current is to be switched OFF and ON, is connected between the
Question # 12
The sum of positive and negative peak values is called:
Question # 13
For a n-p-n transistor, the conventional current equation can be written as
Question # 14
In a transistor, the central region is called
Question # 15
The value of output resistance of OP-AMOP is of the order of
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 -
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 -
M Muhammad Muzammil 11 - Mar - 2024 02 Min 14 Sec 30/60
ECAT Physics Chapter 16 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | The average of A.C. current and voltage over a complete cycle is |
A. Maximum
B. zero
C. Neither zero nor maximum
D. None of these
|
| 2 | An A.C. voltage is applied across the inductor. When the frequency of the voltage is increased, the current |
A. Decreases
B. Increases
C. Does not change
D. Momentarily goes to zero
|
| 3 | SI unit of impedance is |
A. hertz
B. henry
C. ampere
D. ohms
|
| 4 | A sinusoidally alternating voltage or current can be graphically represented by a: |
A. Vector
B. Rotating vector
C. Clockwise vector
D. Anticlockwise voltage vector
|
| 5 | To design a resonant circuit of frequency 100 KHz with an inductor of inductance 5 mH, we need a capacitor of capacitance |
A. 5.07 pF
B. 50 pF
C. 0.507 pF
D. 507 pF
|
| 6 | Which of the following has a great concentration of impurity |
A. base
B. emitter
C. collector
D. none of these
|
| 7 | The basic circuit elements of A.C circuit are |
A. Resistor
B. Inductor
C. Capacitor
D. All the three
|
| 8 | Most OP-AMP operates with |
A. + 6 V supply
B. + 10 V supply
C. + 12 V supply
D. + 24 V supply
|
| 9 | For a n-p-n transistor, the conventional current equation can be written as |
A. IE+ IC= IB
B. IC- IB= IE
C. IC+ IB= IE
D. IB+ IE= IC
|
| 10 | Due to the high value of the input resistance, practically, the value of the current which flows between the input terminals is |
A. zero
B. small
C. large
D. very large
|
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