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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 value of current gain of n-p-n transistor is of the order of
Question # 2
A diode characteristic curve is a plot between
Question # 3
At resonance frequency the impedance of parallel resonance circuit is
Question # 4
The average of A.C. current and voltage over a complete cycle is
Question # 5
Chock consumes externally small
Question # 6
Unless stated otherwise, when we speak of A.C. meter reading, we usualy mean:
Question # 7
In a normally biased n-p-n transistor, an electron c current IEflows from the
Question # 8
The entire wave form of sinusoidal voltage is actually a set of all the:
Question # 9
The magnitude of alternative voltage V:
Question # 10
The sum of positive and negative peak values is called:
Question # 11
The basic circuit elements of A.C circuit are
Question # 12
Which of the following diode is used for the detection of light
Question # 13
If we connected the ordinary DC ammeter to measure alternating current, it would measure its:
Question # 14
The phase at the positive peak of an A.C. cycle is:
Question # 15
The impedance of RLC series resonance circuit at resonant frequency is
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 frequency modulation (FM), the carrier waves amplitude |
A. Remains constant
B. Increase
C. Decreases
D. None of these
|
| 2 | 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
|
| 3 | The R1= infinity and R2= 0, then the gain of non-inverting amplifier is |
A. zero
B. infinity
C. one
D. any one of these
|
| 4 | 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
|
| 5 | The value of current gain of n-p-n transistor is of the order of |
A. tens
B. hundreds
C. thousands
D. ten thousands
|
| 6 | The basic circuit elements of A.C circuit are |
A. Resistor
B. Inductor
C. Capacitor
D. All the three
|
| 7 | A changing magnetic flux creates around itself |
A. An electromotive force
B. An electric field (changing electric flux)
C. Magnetic field
D. None of the above
|
| 8 | Electromagnetic waves transmit energy equal to |
A. 1/2 mv2
B. moc2
C. hf/c
D. hf
|
| 9 | If the value of C in a series RLC circuit is increased, the resonant frequency |
A. Is not affected
B. Increase
C. Remains the same
D. Decreases
|
| 10 | When the emitter-base junction of a transistor is reverse biased, collector current |
A. Reverses
B. Increases
C. Decreases
D. Stops
|
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