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16th Chapter

12th Class Physics Chapter 16 Test

Here you can prepare 12th Class Physics Chapter 16 Alternating Current Test. Click the button for 100% free full practice test.

2nd Year Physics Chapter 16 Online MCQ Test for 12th Class Physics Chapter 16 (Alternating Current)

This online test contains MCQs about following topics:

- Alternating Current
- A.C. Circuits
- A.C. Through a Resistor
- A.C. Through a Capacitor
- A.C. Through an Inductor
- Impedance
- R-C and R-L Series Circuits
- Power in A.C. Circuits
- Series Resonance Circuits
- Parallel Resonance Circuits
- Three Phase A.C. Supply
- Principle of Metal Detectors
- Choke
- Electromagnetic Waves
- Principle of Generation, Transmission and Reception of Electromagnetic Waves
- Modulation

Ics Part 2 Physics Chapter 16 Test
ic

2nd Year Physics Chapter 16 Online MCQ Test for 12th Class Physics Chapter 16 (Alternating Current)

Sr. # Questions Answers Choice
1 The condition of resonance is:
  • A. XL = 1/2 Xc
  • B. X<sub>L</sub> = X<sub>c</sub>
  • C. X<sub>c</sub> = 4<sub>x2</sub>
  • D. None of above
2 At high frequency, the current through a capacitor is
  • A. Small
  • B. Infinity
  • C. Zero
  • D. Large
3 The reactance is the ratio of
  • A. V<sub>rms</sub>/I<sub>rms</sub>
  • B. V<sub>rms</sub> x I<sub>rms</sub>
  • C. I<sub>rms</sub>/V<sub>rms</sub>
  • D. V<sub>max</sub> x V<sub>rms</sub>
4 Average value of current and voltage over a complete cycle is.
  • A. Positive
  • B. Negative
  • C. Zero
  • D. Infinite
5 For electromagnetic waves, Maxwell generalized
  • A. Gauses law for magnetism
  • B. Gauses law for eletricity
  • C. Fradays law
  • D. Amperes law
6 In case of capacitor, the unit of reactance is
  • A. Farad
  • B. Ohm
  • C. Newton
  • D. All of these
7 The phase difference between current and voltage in an inductive circuit is.
  • A. zero
  • B. 90 <sup>o</sup>
  • C. 180 <sup>o</sup>
  • D. 45<sup>o</sup>
8 In an LRC circiut, the capacitance is made one-fourth, when an resonance . Then what should be change in inductance, so that the circuit remain in resonance?
  • A. 4 times
  • B. 1/4 times
  • C. 8 times
  • D. 2 times
9 In frequency modulation, the amplitude of carrier waves is
  • A. Increases
  • B. Remains constant
  • C. Decreases
  • D. None of these
10 If I<sub>o</sub>&nbsp;is the peak value of current, then its root mean square value is given by
  • A.
  • B. 2 I<sub>o</sub>
  • C. I<sub>o</sub>
  • D. 0.7 I<sub>o</sub>

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