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

Question 1 of 13

Question 2 of 13

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

Question 2 of 13

Question 3 of 13

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

Question 3 of 13

Question 4 of 13

4. 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 4 of 13

Question 5 of 13

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

Question 5 of 13

Question 6 of 13

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

Question 6 of 13

Question 7 of 13

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

Question 7 of 13

Question 8 of 13

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

1.
2.
3.
4.

Question 8 of 13

Question 9 of 13

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

1.
2.
3.
4.

Question 9 of 13

Question 10 of 13

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

Question 10 of 13

Question 11 of 13

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

Question 11 of 13

Question 12 of 13

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

Question 12 of 13

Question 13 of 13

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

1.
2.
3.
4.

Question 13 of 13


 

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