21\(\mu C\)
3.6\(\mu C\)
4.0\(\mu C\)
4.4\(\mu C\)
Correct answer is A
F = \(\frac{Q^2}{4 \pi \varepsilon_o r^2}\)
I = 9 x 109 x \(\frac{Q^2}{0.2^2}\)
Q = \(\sqrt{\frac{0.04}{9 \times 10^9}}\)
= 2.11 x 10-6
16\(\Omega\)
68\(\Omega\)
106\(\Omega\)
212\(\Omega\)
Correct answer is D
\(X_c = \frac{1}{2 \pi fc}\)
= 2 x 3.142 x 50 x 15 x 10-6
= 212.179\(\Omega\)
electrical energy to mechanical energy
mechanical energy to electrical energy
mechanical energy to chemical energy
electrical energy to thermal energy
Correct answer is A
No explanation has been provided for this answer.
i and ii only
i and iii only
i, ii and iii only
i, ii, iii and iv
Correct answer is A
conditions for the occurrence of resonance in a series RLC circuit are i) impedance is at minimum ie when inductive and capacitive reactances are equal ii) when current is maximum
The energy stored in a simple cell is
electrical
nuclear
thermal
chemical
Correct answer is D
No explanation has been provided for this answer.