Q&A: How do you figure out current and equivalent resistance in a parallel circuit?

Question by Mara: How do you figure out current and equivalent resistance in a parallel circuit?

Three 17 ohm resistors are connected in parallel and placed across a 24 V battery.

(a) What is the equivalent resistance of the parallel circuit?
(b) What is the current delivered by the battery?
(c) What is the current through each resistor?




Best answer:

Answer by rickson
(A)
1/R=1/17 + 1/17 + 1/17
R=5.66667 OHMS

(B)
Current = Voltage / resistance
Current = 24/ 5.66667
Current = 4.235 Amps

(C)
Current in each resistor= 24/17 = 1.411 Amps

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