Question

A voltage V across a resistance R generates a current I=V/R. If a constant voltage of...

A voltage V across a resistance R generates a current I=V/R. If a constant voltage of 11 volts is put across a resistance that is increasing at a rate of 0.6 ohms per second when the resistance is 8 ohms, at what rate is the current changing?

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Answer #1

given ,V=11,R=8


differentiate with respect to time t

R=8,I=1.375,dR/dt=0.6,dV/dt=0(since voltage is constant)

current is changing at −0.103125 amperes per second

or

current is changing at amperes per second

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