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.

1,256.

The diagram above represents the field pattern obtained by bringing the poles of two magnets together.The poles must be

A.

S-S poles

B.

S-N poles

C.

N-S poles

D.

N-N poles

Correct answer is A

No explanation has been provided for this answer.

1,259.

A uniform light rod is kept in horizontal equilibrium under the influence of fore forces as shown above, which of the following equations correctly represents the condition of equilibrium for the rod

A.

F1 + F2 = F3 + F4

B.

F1 + F2 - F3 + F = 0

C.

(F1 + F2)ab = (F3 + F4)cd

D.

F1a + F2b - F3c - F4d = 0

Correct answer is D

No explanation has been provided for this answer.

1,260.

In the above circuit, The fuse wire melts when

A.

K is Opened

B.

K is closed

C.

the 14 ohm resistor is doubled with k closed

D.

the 6 ohm resistor is doubled with k closed

Correct answer is B

No explanation has been provided for this answer.