Home
News
Colleges
Courses
Admission
Lectures
Online Test
Past Papers
Date Sheets
Results
Study Abroad
Jobs
Tutors
More
Apps
MCQ's Test For ECAT Physics Chapter 16 Alternating Current
Try The MCQ's Test For ECAT Physics Chapter 16 Alternating Current
-
Total Questions15
-
Time Allowed20
ECAT Physics Chapter 16 Alternating Current
00:00
Question # 1
At resonance, the phase angle for RLC series resonance circuit equals
Question # 2
Which one of the following waves belongs to electromagnetic spectrum
Question # 3
The average of A.C. current and voltage over a complete cycle is
Question # 4
Most OP-AMP operates with
Question # 5
Nowadays, Most of the electric energy is produced by the A.C. generators using:
Question # 6
Transmitting antenna emits
Question # 7
When the pn-junction is forward biased. the current flows through it is of the order of
Question # 8
When either L or C is increased, the resonant frequency of the RLC series circuit
Question # 9
A digital system deals with quantities or variables which have
Question # 10
The amplifier which us used to perform mathematical operations electronically is known as
Question # 11
A signal is amplified at the output without any change of phase, if it is applied at the
Question # 12
The power factor of resonant series circuit is
Question # 13
If 250V is the RMS value of alternative voltage, then its peak value Vowill be:
Question # 14
Which of the following has a great concentration of impurity
Question # 15
A changing magnetic flux creates around itself
Top Scorers Of ECAT Physics Chapter 16 Alternating Current MCQ`s Test
-
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 -
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 -
M musman shahid 03 - Jun - 2024 02 Min 53 Sec 30/60
ECAT Physics Chapter 16 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | A resonance curve for RLC series circuit is a plot of frequency versus |
A. Voltage
B. Current
C. Impedance
D. Reactance
|
| 2 | In a transistor, if the central region is p-type then this type of transistor is known as |
A. p-n-p transistor
B. n-p-n transistor
C. either of these
D. none of these
|
| 3 | In which of the following diodes when an electron combines with a hole during the forward biasing, photon of visible light is emitted. |
A. photo diode
B. light emitting diode
C. photo voltaic cell
D. all of them
|
| 4 | If we connected the ordinary DC ammeter to measure alternating current, it would measure its: |
A. Instantaneous value
B. RMS value
C. Value averaged over a cycle
D. Either (B) or (C)
|
| 5 | The input resistance of the OP-AMP is the resistance between the |
A. (-) input and output
B. (+) input and output
C. (-) and (+) inputs
D. between any inputs
|
| 6 | Average value of A.C voltage during one cycle is |
A. 1
B. Zero
C. Maximum
D. Variable
|
| 7 | The power factor of resonant series circuit is |
A. 1
B. 0
C. -1
D. 0.5
|
| 8 | A diode characteristic curve is a plot between |
A. current and time
B. voltage and time
C. voltage and current
D. forward voltage and reversed voltage
|
| 9 | 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
|
| 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
