Physics questions and answers

Physics Questions and Answers

If you want to learn more about the nature and properties of matter and energy or you're simply preparing for a Physics exam, these Physics past questions and answers are ideal for you.

2,111.

A device used to prevent wearing away of the make and-brake contacts of an induction coil is called a\an

A.

fuse

B.

electroscope

C.

resistor

D.

capacitor

Correct answer is D

No explanation has been provided for this answer.

2,112.

The region around a magnet in which the magnetic influence is experienced is called

A.

magnetic flux

B.

magnetic field

C.

magnetic meridian

D.

magnetic declination

Correct answer is B

No explanation has been provided for this answer.

2,114.

In the diagram given, the current passing through the 6\(\Omega\) resistor is 1.5A. Calculate the terminal p.d. of the battery in the diagram

A.

7.50V

B.

9.00V

C.

10.80V

D.

1.25V

Correct answer is C

C.V = 1R1 + 1R2

= (1.2 1.5) + (1.5 6)

= 1.8 + 9

= 10.80V

2,115.

In the diagram above, the current passing through the 6\(\Omega\) resistor is 1.5A. Calculate the current in the 30\(\Omega\) resistor

A.

1.20A

B.

0.90A

C.

0.75A

D.

0.60A

Correct answer is D

No explanation has been provided for this answer.