A simple circuit has a total resistance of $30 \Omega$. If a $2.0$-A current is maintained in this circuit, how much energy is dissipated in this circuit in $4.0$ seconds?
A) $480 \mathrm {~J}$
B) $24 \mathrm {~J}$
C) $4.8 \mathrm {~J}$
D) $6.0 \mathrm {~J}$
E) $48 \mathrm {~J}$

Question

Quizplus · Accepted Answer

The energy dissipated in the circuit can be calculated using the formula $E = I^2 R t$, where $E$ is the energy in joules, $I$ is the current in amperes, $R$ is the resistance in ohms, and $t$ is the time in seconds. Substituting the given values, $E = (2.0)^2 \times 30 \times 4.0 = 480 \mathrm{~J}$.

A Simple Circuit Has a Total Resistance Of 30Ω30 \Omega30Ω If A Has

A Simple Circuit Has a Total Resistance Of $30 \Omega$ If A Has