Asked by Anonymous

Each of the four circuits in the drawing consists of a single resistor whose resistance is either R or 2R, and a single battery whose voltage is either V or 2V. The unit of voltage in each circuit is V = 10 V and the unit of resistance is R = 8 Ω. Determine (a) the power supplied to each resistor and (b) the current delivered to each resistor.

Answers

Answered by drwls
You say each circuit has one resistor.
(a) The power in that resistor is
P = V^2/R
(b) The current in the resistor is
I = V/R

V is either 10 or 20 volts, depending upon the circuit.

R is either 8 or 16 Ù, depending upon the circuit.
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