How much power is produced if a voltage of $7 V$ $7 V$ is applied to a circuit with a resistance of $28 Omega$ ?

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Answer 1 · 2016-03-18T18:12:09

$P=1,75" "W$

$P=I^2*R" ; "I=V/R" ; "I^2=V^2/R^'" ; "P=V^2/R^2*R$
$P=V^2/R$
$P=7^2/28=49/28$
$P=1,75" "W$

How much power is produced if a voltage of 7 V7V7 V is applied to a circuit with a resistance of 28 Omega28 Omega?