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 electromagnetic spectrum contains
  • A. Radio waves
  • B. X-rays
  • C. Microwaves
  • D. All of these
2 The peak to peak value of alternating voltage is
  • A. 2V<sub>o</sub>
  • B. V<sub>o</sub>
  • C.
  • D. None of these
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 An inductor of 1 henry inductance has a reactance 500 ohms, then the frequency required is approximately
  • A. 50 Hz
  • B. 100 Hz
  • C. 80 Hz
  • D. 120 Hz
5 In three phase voltage across any two lines is about.
  • A. 220 V
  • B. 230 V
  • C. 400 V
  • D. 430 V
6 An alternating quantity (voltage or current) is completely known if we know its:
  • A. Maximum
  • B. Frequency and phase
  • C. Effective value
  • D. Both (a) &amp; (b)
7 The main reason for world wide use of A.C is because:
  • A. It is very high power&nbsp;
  • B. It can be transmitted over long distance
  • C. It is cheaper to use
  • D. ALl of above
8 Radio frequency choke is
  • A. Iron cored
  • B. Air Cored
  • C. Air as well as iron cored
  • D. None of these
9 In frequency modulation, the amplitude of carrier waves is
  • A. Increases
  • B. Remains constant
  • C. Decreases
  • D. None of these
10 Electro magnetic waves emitted from radio antenna are.
  • A. Stationary
  • B. Longitudinal
  • C. Transvers
  • D. Both a and b

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