Question

Help, fast!

If you have an 18 Ohm light bulb connected to a 9.0 V cell, what is the current in the circuit?

Answer 1

Step-by-step explanation:

Given:

R = 18 Ohm

U = 9.0 V

__________

I - ?

Ohm's law:

I = U / R

I = 9.0 / 18 = 0.5 A