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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 In A.C circuit of inductor which one is true
  • A. Voltage leads current by phase angle π/2
  • B. Voltage lags current by π/2
  • C. Current leads voltage by π/2
  • D. Both remain in phase
2 The highest value reached by the voltage or current is one cycle is called:
  • A. Peak to peak value
  • B. Peak value
  • C. <div>Instantaneous value</div>
  • D. Root mean square value
3 In frequency modulation which factor changed.
  • A. Amplitude of charge carriers
  • B. Frequency of charge carriers
  • C. Amplitude of signal
  • D. Frequency of signal
4 The combined effect of resistance and reactance is knows as.
  • A. Inductance
  • B. Conductance
  • C. Resistance
  • D. Impedance
5 In purely resistive A.C circuit, instantaneous value of voltage and current:
  • A. Current lags behind voltage
  • B. Current leads voltage by&nbsp;π/2
  • C. Both are in Phase
  • D. Voltage leads current by Pase&nbsp;θ=π/2
6 The device which allows only the continuous flow of AC through it is.
  • A. Inductor
  • B. Battery
  • C. Thermistor
  • D. Capacitor
7 In case of capacitor, the unit of reactance is
  • A. Farad
  • B. Ohm
  • C. Newton
  • D. All of these
8 In three phase voltage across any two lines is about.
  • A. 220 V
  • B. 230 V
  • C. 400 V
  • D. 430 V
9 The flow of D.C current is opposed by
  • A. Resistor
  • B. Induction
  • C. Capacitor
  • D. All of these
10 In chopke coil the resistance X<sub>L</sub> an resistance R are:
  • A. X<sub>L</sub>=R
  • B. X<sub>L</sub>&lt;&lt;R
  • C. X<sub>L</sub>&gt;&gt;R
  • D. X<sub>L</sub>=<span style="color: rgb(34, 34, 34); font-family: arial, sans-serif; font-size: 16px;">∞</span>

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