You measure the current through a 31.5-ω resistor to be 401 ma. what is the potential difference across the contacts of the resistor?

i don't understand is there any other way you can rephrase it plz let me know in the comments and i will do it.

explanation:

pythagoras' theorem

square root (-5^2+9^2)

square root (25+81)

square root (106)

angle is tan^-1(9/5)

neg x, pos y

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