what is the resistance of a clock if it has a current of 0.30 a and runs on a 9.0 - v battery?\n0.033 ω\n2.7…
what is the resistance of a clock if it has a current of 0.30 a and runs on a 9.0 - v battery?\n0.033 ω\n2.7 ω\n9.3 ω\n30 ω
Answer
Explanation:
Step1: Recall 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 given values
Given $V = 9.0\ V$ and $I=0.30\ A$. Then $R=\frac{9.0}{0.30}$.
Step3: Calculate the resistance
$R = 30\ \Omega$.
Answer:
D. 30 Ω