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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
Electromagnetic waves transmit energy equal to
Question # 2
When either L or C is increased, the resonant frequency of the RLC series circuit
Question # 3
Due to the high value of the input resistance, practically, the value of the current which flows between the input terminals is
Question # 4
Which one of the following is correct?
Question # 5
When the pn-junction is in reversed biased, current flows through the junction due to the
Question # 6
Most OP-AMP operates with
Question # 7
Which of the following has a great concentration of impurity
Question # 8
The power factor of resonant series circuit is
Question # 9
Unless stated otherwise, when we speak of A.C. meter reading, we usualy mean:
Question # 10
Peak value of alternative current is:
Peak value of alternative current is:
Question # 11
Transmitting antenna emits
Question # 12
OP-AMP has the following input terminals
Question # 13
In a transistor, the central region is called
Question # 14
Alternating current can be transmitted:
Question # 15
When the pn-junction is connected reversed biased, its resistance is of the order of
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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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 Instantaneous value of alternative current maybe: |
A. The same as its RMS value
B. Greater than its Rms value
C. The same as its peak value
D. Any of these
|
| 2 | 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
|
| 3 | 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
|
| 4 | At resonance, the phase angle for RLC series resonance circuit equals |
A. 0°
B. 90°
C. 180°
D. 270°
|
| 5 | When either L or C is increased, the resonant frequency of the RLC series circuit |
A. Increases
B. Decreases
C. Remains the same
D. Becomes zero
|
| 6 | If 250V is the RMS value of alternative voltage, then its peak value Vowill be: |
A. 353.5V
B. 250V
C. 175V
D. zero
|
| 7 | When the pn-junction is in reversed biased, current flows through the junction due to the |
A. majority carriers
B. minority carriers
C. either of them
D. none of them
|
| 8 | The phase angle of a series RLC circuit at resonance is |
A. 180°
B. 90°
C. 0°
D. None of the these
|
| 9 | At resonance, the impedance of RLC series circuit is |
A. Maximum
B. Zero
C. Minimum
D. Determinate
|
| 10 | 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
|
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