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.
5.0μF
4.0μF
3.0μF
1.0μF
0.5μF
Correct answer is D
No explanation has been provided for this answer.
4000V
200V
16V
6V
4V
Correct answer is A
\(E = \frac{CV^{2}}{2}\)
\(V^{2} = \frac{2E}{C}\)
\(V^{2} = \frac{2\times 40}{5 \times 10^{-6}}\)
\(V^{2} = 16 \times 10^{6}\)
\(V = 4 \times 10^{3} = 4000v\)
0.01
0.02
50.00
100.00
200.00
Correct answer is D
No explanation has been provided for this answer.
If the current in the resistor R in diagram above is 0.05A, calculate the p.d. across the inductor.
2.5V
25.0V
49.0V
50.0V
250.0V
Correct answer is A
V= i × \(_l\)
X\(_l\) = inductive reactance → 50
I = current → 0.05A
V = 0.05 × 50
V = 2.5volt
Calculate the inductive reactance of the circuit shown above.
50.00
5.00
0.50
0.05
0.02
Correct answer is A
No explanation has been provided for this answer.