Question

1. Calculate the resistance of a 12v, 20-amp circuit.

Answer 1

Answer:

R = 0.6 ohms

Explanation:

We have,

Voltage of the circuit is 12 V

Current flowing in the circuit is 20 A

It is required to find the resistance of the circuit. Ohm'slaw gives the relationship between voltage, current and resistance. It is given by :

$V=IR$

R = resistance

$R=\dfrac{V}{I}\\\\R=\dfrac{12}{20}\\\\R=0.6\ \Omega$

so, the resistance of the circuit is 0.6 ohms.