Question

a subwoofer needs a household voltage of 110 v to push a current of 5.1 a through its coil. what is the resistance of the subwoofer?
answer
what are the units for your answer?
select one:
ohms
volts
amps
clear my choice

Explanation:

Step1: Recall Ohm's Law

Ohm's Law: $R = \frac{V}{I}$ where $V=110\,\text{V}$, $I=5.1\,\text{A}$

Step2: Calculate resistance

$R = \frac{110}{5.1} \approx 21.57$

Step3: Identify unit for resistance

Resistance unit is Ohms.

Answer:

21.57
Ohms