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.
i and ii only
ii and iii only
i and iii only
i, ii and iii
Correct answer is C
No explanation has been provided for this answer.
Which of the following statements about a bar magnet is correct?
iron fillings cling uniformly along the length of a bar magnet
the magnetic properties are more pronounced at the middle of a magnet
it is impossible to have the same poles at the end of a magnet
the magnetic properties are more pronounced at points near the end of the bar
Correct answer is D
No explanation has been provided for this answer.
An electric lamp rated 120W is used on a 240Vrms, calculate the resistance of its filament
480\(\Omega\)
360\(\Omega\)
60\(\Omega\)
2\(\Omega\)
Correct answer is A
R = \(\frac{V^2}{P} = \frac{240^2}{120} = 480\Omega\)
0.25A
0.30A
0.35A
0.50A
Correct answer is A
I = \(\frac{E}{R + r} = \frac{1.5}{5 + 1}\)
= \(\frac{1.5}{6} = 0.25A\)
2.0\(\mu F\)
3.0\(\mu F\)
4.5\(\mu F\)
9.0\(\mu F\)
Correct answer is D
C = C1 + C2
= 3 + 6 = 9\(\mu F\)