Question

lightbulb with a resistance of 50 ohms is used in a circuit with a 9 volt battery. What is the current through the bulb?

Answer 1

According to Ohms Law V=IR
where,
V=Volt=9
I=Current=?
R=Resistance=50ohm

Now rearrange V=IR

=> \[I=\frac{ V }{ R }\]

Put in the values and you will get you answer.

Answer 2

your answer should be 0.18 amperes