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Punjab 12th Class Physics Chapter 5 A.C. Circuit Mcqs Test Online

Total Question
13 Questions
Total Marks
26 Marks
Total Time
13 Minuts
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Test Name



Ch. 5 # A.C. Circuit

Subject



Physics (12th Class)

Test Type



MCQs


Punjab 12th Class Physics Chapter 5 A.C. Circuit Mcqs Test Online

Punjab 12th Class Physics Chapter 5 A.C. Circuit Mcqs Test Online

 

Question 1 of 13

Physics

1. In an LRC circuit, the capacitance is made one-fourth, when in resonance. Then what should be change in inductance, so that the circuit remains in resonance?
1.
2.
3.
4.

Question 1 of 13

Question 2 of 13

2. The peak value of alternating current is 5√2 A. the mean square value of current will be:
1.
2.
3.
4.

Question 2 of 13

Question 3 of 13

3. In LR current which one of the following statement is correct?
1.
2.
3.
4.

Question 3 of 13

Question 4 of 13

4. An electromagnetic wave goes from air to glass which of the following does not change?
1.
2.
3.
4.

Question 4 of 13

Question 5 of 13

5. The circuit in which current and voltage are in phase, the power factor is:
1.
2.
3.
4.

Question 5 of 13

Question 6 of 13

6. An alternating quantity (voltage or current) is completely known if we know it’s:

1.
2.
3.
4.

Question 6 of 13

Question 7 of 13

7. The AC system is preferred to DC system because:

1.
2.
3.
4.

Question 7 of 13

Question 8 of 13

8. An alternating voltage is given by 20 sin 157 t. the frequency of alternating voltage is:
1.
2.
3.
4.

Question 8 of 13

Question 9 of 13

9. The phase difference between the current and voltage at resonance is:

1.
2.
3.
4.

Question 9 of 13

Question 10 of 13

10. In choke coil the reactance Xt and resistance R are:
1.
2.
3.
4.

Question 10 of 13

Question 11 of 13

11. For electromagnetic waves, Maxwell generalized:
1.
2.
3.
4.

Question 11 of 13

Question 12 of 13

12. A capacitor is perfectly insulator for:
1.
2.
3.
4.

Question 12 of 13

Question 13 of 13

13. In AC system we generate since wave form because:
1.
2.
3.
4.

Question 13 of 13


 

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