What is the electric current produced when a voltage of $9 V$ is applied to a circuit with a resistance of $30 Omega$ ?

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Answer 1 · 2016-02-13T21:44:30

$0.3"A"$

Use the equation $I = V/R$ to find:

$I = 9/30 = 3/10 = 0.3"A"$

One way to remember the relationship between voltage $V$ , current $I$ and resistance $R$ is the $VIR$ triangle:

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This can be read as $V = I*R$ , $I = V/R$ or $V/I = R$

What is the electric current produced when a voltage of 9 V9 V is applied to a circuit with a resistance of 30 Omega30 Omega?