MCQ on Class 12 Physics Chapter 7 Alternating Current with Answers

We have compiled the MCQ Questions for Class 12 Chemistry Chapter 7 Alternating Current with Answers Pdf free download covering the entire syllabus for JEE/NEET and Boards. Practice MCQ Questions for Class 12 Physics with Answers on a daily basis and score well in exams. Refer to the Alternating Current Class 12 MCQs Quiz Questions with Answers here along with a detailed explanation

Download Books for Boards

Join our Telegram Channel, there you will get various e-books for CBSE 2024 Boards exams for Class 9th, 10th, 11th, and 12th.

We earn a commission if you make a purchase, at no additional cost to you.

Alternating Current Class 12 MCQs Questions with Answers

MCQ Questions for Class 12 Physics Chapter 7 Alternating Current with Answers

Please enter your email:

1. The transformation ratio in the step-up transformer is

 
 
 
 

2. A capacitor has capacitance C and reactance X, if capacitance and frequency become double, then reactance will be

 
 
 
 

3. Alternating current can not be measured by D.C. ammeter, because

 
 
 
 

4.  
In an alternating current circuit consisting of elements in series, the current increases on increasing the frequency of supply. Which of the following elements are likely to constitute the circuit?

 
 
 
 

5. An AC voltage source of variable angular frequency ω and fixed amplitude V0 is connected in series with a capacitance C and an electric bulb of resistance R (inductance zero). When ω is increased then,

 
 
 
 

6. A bulb connected in series with a solenoid is lit by an AC source. If a soft iron core is introduced in the solenoid then,

 
 
 
 

7. Quantity that remains unchanged in a transformer is

 
 
 
 

8. Which of the following effects is not shown in alternating current ?

 
 
 
 

9. Power factor is one for

 
 
 
 

10. In parallel resonant circuit:

 
 
 
 

11. A rejector circuit is:

 
 
 
 

12. Consider the following statements and then select the correct statements.
I. Most of the electrical device we use require AC voltage.
II. Most of the electrical energy sold by power companies is transmitted and distributed as alternating current.
III. AC voltage can be easily and efficiently converted from one to the other by means of transformers.

 
 
 
 

13.  
A rejector circuit is:

 
 
 
 

14. In an L.C.R. series a.c. circuit, the current

 
 
 
 

15. The dimensional formula of impedance is;

 
 
 
 

16. Transformer works on the principle of:

 
 
 
 

17. In which of the following circuits the maximum power dissipation is observed?

 
 
 
 

18.  
Identify the principle behind the working of an a.c. generator.

 
 
 
 

19. Power factor of an ac circuit is a measure of:

 
 
 
 

20. For minimum dissipation of energy in the circuit the power factor should be

 
 
 
 

Hope the information shed above regarding MCQ Questions for Class 12 Physics Chapter 7 Alternating Current with Answers Pdf free download has been useful to an extent. If you have any other queries of CBSE Class 12 Physics Alternating Current MCQs Multiple Choice Questions with Answers, feel free to comment below so that we can revert back to us at the earliest possible.
By Team Study Rate

Sneha

Master's in Biology, Skilled in vocational training. Strong Analytical and creative knowledge.

Leave a Reply

This site uses Akismet to reduce spam. Learn how your comment data is processed.