a 75.0 w bulb is connected to a 110 v (dc) outlet. how much current flows through the bulb? (unit = a)

a 75.0 w bulb is connected to a 110 v (dc) outlet. how much current flows through the bulb? (unit = a)

a 75.0 w bulb is connected to a 110 v (dc) outlet. how much current flows through the bulb? (unit = a)

Answer

Explanation:

Step1: Recall power - voltage - current formula

The power formula is $P = VI$, where $P$ is power, $V$ is voltage, and $I$ is current. We need to solve for $I$.

Step2: Rearrange the formula for current

Rearranging $P = VI$ gives $I=\frac{P}{V}$.

Step3: Substitute given values

We are given $P = 75.0\ W$ and $V = 110\ V$. Substituting these values into the formula $I=\frac{P}{V}$, we get $I=\frac{75.0}{110}$.

Step4: Calculate the current

$I=\frac{75.0}{110}\approx0.682\ A$

Answer:

$0.682\ A$