Question

1. an alarm clock draws 0.7 a of current when connected to a 120 volt circuit. calculate its resistance.

v=
i=
r=

Explanation:

Step1: Identify the formula

Ohm's Law: $V = IR$, where $V$ is voltage, $I$ is current, and $R$ is resistance. We need to solve for $R$, so $R=\frac{V}{I}$.

Step2: Substitute the values

Given $V = 120$ volts and $I=0.7$ A.
$R=\frac{120}{0.7}$

Step3: Calculate the result

$R=\frac{120}{0.7}\approx171.43$ ohms

Answer:

The resistance of the alarm clock is approximately $171.43$ ohms.