The current (I) in an electrical conductor varies inversely as the resistance (R) of the conductor. The current is 6 amperes when the resistance is 722 ohms. What is the current when the resistance is 768 ohms? Round your answer to two decimal places if necessary.

Because current varies inversely with resistance, the product I × R stays constant. Thus the new current is 6 × 722 ÷ 768 = 5.640625 amps, or 5.64 amps to two decimal places. Choice A, 5.6 amps, is the matching choice (rounded to one decimal place).

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