General Physics Questions And Answers


Q1. 
Identify the law used to find the direction of eddy currents.

Ans.
Lenz’s law


Q2. 
Which among the following is true about Faraday’s law of Induction?

Ans.
An emf is induced in a conductor when it cuts the magnetic flux


Q3. 
What is proportional to the magnitude of the induced emf in the circuit?

Ans.
Rate of change of magnetic flux


Q4. 
Faraday’s laws are result of the conservation of which quantity?

Ans.
Energy


Q5. 
The induced emf persists only as long as the change in magnetic flux continues.

Ans.
True


Q6. 
LC oscillations only continues at a definite frequency.

Ans.
False


Q7. 
What is the most common application of LC oscillators?

Ans.
Radio transmitters


Q8. 
How many types of power can be defined in an AC circuit?

Ans.
3


Q9. 
Which among the following varies in both magnitude and sign over a cycle?

Ans.
Instantaneous power


Q10. 
Apparent power is also known virtual power.

Ans.
True