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OpenStudy (anonymous):
Two identical resistors, each of resistance 20Ω are connected (i) in parallel (ii) in series, in turn, to a battery of 10 V. Calculate the ratio of power consumed in the combination of resistors in the two cases.
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OpenStudy (anonymous):
P = VI
OpenStudy (anonymous):
so... we need to determine the current for each of these circuits.
OpenStudy (anonymous):
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OpenStudy (anonymous):
in series, you add up the resistors and that equals a single resistor. 20+20 = 40
OpenStudy (anonymous):
V = IR and p=vi can you take it from here for series?
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