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If two 10 ohm resistors are connected in series with a 10 volt battery, the power consumption would be:
5 watts
Total Resistance (R_T) = 10 Ω + 10 Ω = 20 Ω. Total Current (I) = V / R_T = 10 V / 20 Ω = 0.5 A. Total Power (P) = V * I = 10 V * 0.5 A = 5 W. (Alternatively, P = I^2 * R_T = (0.5)^2 * 20 = 0.25 * 20 = 5 W).
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