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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
In a transistor, the central region is called
Question # 2
The entire wave form of sinusoidal voltage is actually a set of all the:
Question # 3
Conversion of alternating current into direct current is called
Question # 4
Unless stated otherwise, when we speak of A.C. meter reading, we usualy mean:
Question # 5
A resonance curve for RLC series circuit is a plot of frequency versus
Question # 6
Which one of the following Electro-magnetic wave have the highest frequency and shortest wave-length
Question # 7
The value of the input resistance of OP-AMP is of the order of
Question # 8
Mathematical manipulation of the two quantized states can be best carried if they are represented by
Question # 9
Due to the high value of the input resistance, practically, the value of the current which flows between the input terminals is
Question # 10
The average of A.C. current and voltage over a complete cycle is
Question # 11
Transmitting antenna emits
Question # 12
When the p-n junction is forward biased its resistance is of the order of
Question # 13
At resonance frequency the impedance of parallel resonance circuit is
Question # 14
Alternating current can be transmitted:
Question # 15
During the negative half-cycle of the half-wave rectification, the diode
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 -
A Abdullah Baloch 02 - Aug - 2024 02 Min 33 Sec 55/60 -
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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 | In a normally biased n-p-n transistor, an electron c current IEflows from the |
A. emitter into the base
B. collector into the base
C. base into collector
D. none of these
|
| 2 | Chock consumes externally small |
A. Charge
B. Current
C. Power
D. Potential
|
| 3 | A resonance curve for RLC series circuit is a plot of frequency versus |
A. Voltage
B. Current
C. Impedance
D. Reactance
|
| 4 | 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
|
| 5 | The value of output resistance of OP-AMOP is of the order of |
A. few ohms
B. few hundred ohms
C. several kilo ohms
D. several mega ohms
|
| 6 | Most OP-AMP operates with |
A. + 6 V supply
B. + 10 V supply
C. + 12 V supply
D. + 24 V supply
|
| 7 | 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
|
| 8 | At resonance, the impedance of RLC series circuit is |
A. Maximum
B. Zero
C. Minimum
D. Determinate
|
| 9 | The impedance of RLC series resonance circuit at resonant frequency is |
A. Greater than R
B. Equal to R
C. Less than R
D. None of these
|
| 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