A capacitor of capacitance C, a resistor of resistance R an…

Physics Electrostatics Potential & Capacitance Capacitance MCQ (Single Correct)

A capacitor of capacitance C, a resistor of resistance R and a battery of emf ε are connected in series at t = 0. What is the maximum value of

the potential difference across the resistor.

the current in the circuit.

the potential difference across the capacitor.

the energy stored in the capacitor. (e) the power delivered by the battery. (f) the power converted into heat.

Text Solution

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The correct answer is:

CHECK THE SOLUTION.

ε, , ε, C ε 2 , (e) , (f)

Sol.

at t = 0, C is replace by wire.

V rmax = ε

i =

at t → ∞ , C is replace by broken wire and now current in circuit = 0, so

V C = ε

U C = C ε 2 (e) P battery = i V = =

(f) Δ H = .

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