Question

if a 120v circuit has the resistance of 12 ohms, what is the current? 5 points your answer if a 120v circuit has the resistance of 2 ohms, what is the current? 5 points your answer please fill out this field. if a circuit has 12 ohms of resistance, and there is a 20 amp current draw, 5 points what is the required voltage? your answer if a circuit has 8 ohms of resistance, and there is a 15 amp current draw, 5 points what is the required voltage?

Explanation:

Step1: Recall Ohm's Law

Ohm's Law is $V = IR$, where $V$ is voltage, $I$ is current and $R$ is resistance. We can re - arrange it to find $I=\frac{V}{R}$ and $V = IR$.

Step2: Solve first question

Given $V = 120$ volts and $R = 12$ ohms. Using $I=\frac{V}{R}$, we substitute the values: $I=\frac{120}{12}=10$ amps.

Step3: Solve second question

Given $V = 120$ volts and $R = 2$ ohms. Using $I=\frac{V}{R}$, we substitute the values: $I=\frac{120}{2}=60$ amps.

Step4: Solve third question

Given $R = 12$ ohms and $I = 20$ amps. Using $V = IR$, we substitute the values: $V=20\times12 = 240$ volts.

Step5: Solve fourth question

Given $R = 8$ ohms and $I = 15$ amps. Using $V = IR$, we substitute the values: $V=15\times8=120$ volts.

Answer:

10 amps
60 amps
240 volts
120 volts