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.
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.
| _q2 |
| 4πεor2 |
| _q2 |
| 4πεor |
| _q |
| 4πεor2 |
\(\frac{q}{4πΣ_or}\)
Correct answer is D
Electric potential is work done in taking a unit mass or charge from infinity to that point
| V = | w | = | Fr | = | Q1Q2 | x | r |
| Q | Q | 4πεor2 | Q1 |
| = | _q |
| 4πεor |
Z only
X only
Y and Z
Y and X
Correct answer is A
Under neutral equilibrium, the body rolls and the position of the center of gravity , C. G is neither raised nor lowered
14.0 N
10.0 N
12.0 N
13.0 N
Correct answer is B
The resultant, R is given by pythagoras rule, R2 = P2 + Q2
= 62 + 82 = 36 + 64 = 100
R = √100 = 10.0N
the energy released
the electrochemical equivalent
the current flowing
the charge released
Correct answer is B
In Faradays law of electrolysis
M = It = Q
Where M is the mass of substance deposit . Q is the quantity of charge. A graph of m against Q is a straight line passing through the origin with slope equal to the electrochemical equivalent.Z
south and north
north and south
north and north
south and south
Correct answer is C
IN magnetisation by stroking, the last touched has a pole opposite to that of the magnet used. Therefore, the poles T and V are N and N respectively