Question

When a 20 V battery is hooked up to a 50 Ω resistor in a circuit, how much current flows through the circuit?2 A20 A200 A0.4 A

Answer 1

We will use the Ohms Law to solve this problem

$I=\frac{V}{R}$

where V is the voltage, R is the resistance and I is the current

In our case we have

V=20V

R=50 Ω

We substitute the values

$I=\frac{20}{50}=0.4A$

The current that flows through the circuit is 0.4 A