katie wants to buy the right headlamp bulb as a spare for her motorcycle. if the circuit in the motorcycle…

katie wants to buy the right headlamp bulb as a spare for her motorcycle. if the circuit in the motorcycle runs off a standard 12 v battery, and one of the headlights is switched on, current flowing through the headlight is measured at 3.75 a. what is the power usage of the headlamp? report the answer to two significant digits. watts

katie wants to buy the right headlamp bulb as a spare for her motorcycle. if the circuit in the motorcycle runs off a standard 12 v battery, and one of the headlights is switched on, current flowing through the headlight is measured at 3.75 a. what is the power usage of the headlamp? report the answer to two significant digits. watts

Answer

Explanation:

Step1: Identify power formula

The formula for electrical power is $P = VI$, where $P$ is power, $V$ is voltage, and $I$ is current.

Step2: Substitute values

Given $V = 12\ V$ and $I=3.75\ A$. So $P=12\times3.75$.

Step3: Calculate power

$P = 45$ watts. Rounding to two - significant digits, it remains 45 watts.

Answer:

45 watts