At time t = 0, terminal A in the circuit shown in the figure is connected to B by a key…
Physics · JEE Advanced · NTA Exams — Electromagnetic Induction and Alternating Currents
At time t = 0, terminal A in the circuit shown in the figure is connected to B by a key and an alternating current I(t) = I0cos(wt), with I0 = 1 A and w = 500 rad s–1
starts flowing in it with the initial direction shown in the figure. At
the key is switched from B to D. Now onwards only A and D are connected. A total charge Q flows from the battery to charge the capacitor fully. If
C = 20 mF, R = 10 W and the battery is ideal with emf of 50 V, identify the correct statement(s).
starts flowing in it with the initial direction shown in the figure. At
the key is switched from B to D. Now onwards only A and D are connected. A total charge Q flows from the battery to charge the capacitor fully. If C = 20 mF, R = 10 W and the battery is ideal with emf of 50 V, identify the correct statement(s).
- Magnitude of the maximum charge on the capacitor before
is 1 × 10–3 C. - The current in the left part of the circuit just before is clockwise.
- Immediately after A is connected to D, the current in R is 10 A.
- Q = 2 × 10–3 C.
Answer
(D) Q = 2 × 10 –3 C.
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