calculating power of headlamps\nkatie wants to buy the right headlamp bulb as a spare for her motorcycle. if…

calculating power of headlamps\nkatie 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.\nwatts

calculating power of headlamps\nkatie 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.\nwatts

Answer

Explanation:

Step1: Recall power - voltage - current formula

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

Step2: Substitute given values

Given $V = 12\ V$ and $I=3.75\ A$. Substitute into the formula: $P=(12\ V)\times(3.75\ A)$.

Step3: Calculate the power

$P = 12\times3.75=45\ W$.

Answer:

45