A student in the laboratory connects a 17 Ω resistor, a 22 Ω resistor, and a 38 Ω resistor in series and then connects the arrangement to a 35-V dc source.
(a) How much current is in the circuit?
A
(b) How much power is expended in the circuit?
W
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Hints: Resistors in series are additive. Current is found by the formula I = E/R. Power is found by the formula P = I x E. (Your instructor may use different letters for electrical values.)