Answer
a) 48 volts
b) .75 ohms
Work Step by Step
a)
$V = I * R$
$v = 24 * 2$
$v = 48 volts$
b)
$V = I * R$
$18 = 24 * R$
$18/24 = 24/24 * R $
$.75 = R$
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