Three capacitors are connected as shown in the figure. What is the equivalent ca

Question

Three capacitors are connected as shown in the figure. What is the equivalent capacitance between points A and B? For the circuit below, what happens when the switch S is closed? (a) Nothing. Current cannot flow through the capacitor (b) The capacitor immediately charges up to the battery emf. (c) The capacitor eventually charges up to the full battery emf at a rate determined by R and C. (d) The capacitor charges up to a fraction of the battery emf determined by R and C. (e) The capacitor charges up to a fraction of the battery emf determined by R only. Why is an appliance cord with a three-prong plug safer than one with two prongs?

Explanation / Answer

11) 4uF and 6uF are connected in parallel.

so equivalent of these two will be,

C = 4 + 6 = 10 uF

now C and 2uF are connected in series.

1/Ceq = 1/C + 1/2 = 1/10 + 1/2

Ceq = 5/3 uF Or 1.7 uF ........Ans

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