select the correct images. which circuits correctly show ohms law?

select the correct images. which circuits correctly show ohms law?

select the correct images. which circuits correctly show ohms law?

Answer

Explanation:

Step1: Recall Ohm's law formula

Ohm's law is $V = IR$, where $V$ is voltage, $I$ is current and $R$ is resistance.

Step2: Check the first - circuit

For the first circuit, $V = 25V$, $I = 5A$, $R=5\Omega$. Using $V = IR$, we have $5\times5=25V$, which satisfies Ohm's law.

Step3: Check the second - circuit

For the second circuit, $V = 18V$, $I = 6A$, $R = 4\Omega$. Using $V = IR$, we get $6\times4 = 24V\neq18V$, so it does not satisfy Ohm's law.

Step4: Check the third - circuit

For the third circuit, $V = 56V$, $I = 7A$, $R = 8\Omega$. Using $V = IR$, we have $7\times8=56V$, which satisfies Ohm's law.

Step5: Check the fourth - circuit

For the fourth circuit, $V = 20V$, $I = 5A$, $R = 4\Omega$. Using $V = IR$, we get $5\times4 = 20V$, which satisfies Ohm's law.

Answer:

The first, third and fourth circuits.