HELP PLEASE ASAP URGENT: A light bulb whose resistance is 240 ohms is connected to a 120 voltage source. What is the current through the bulb? Identify all of your data, write the equation, and show all work.

Question

HELP PLEASE ASAP URGENT: A light  bulb whose resistance is 240 ohms is connected to a 120 voltage source.  What is the current through the bulb?  Identify all of your data, write the equation, and show all work.

palwandew · Answer

Do you know the formula to find current?

iwanttogotostanford · Answer

this? P = I × V. P = power

palwandew · Answer

Nope V=IR 
I=V/R. 
Now put the given values.

palwandew · Answer

I=current 
V=voltage
R=resistance

iwanttogotostanford · Answer

ok thank you ill put those in really quick

iwanttogotostanford · Answer

so it would be I=120/240

palwandew · Answer

Yep.

iwanttogotostanford · Answer

and then what do i do from there to complete what the question is asking?

iwanttogotostanford · Answer

so the current would be 0.5 correct?

palwandew · Answer

Yes and don't forget to write its unit.

iwanttogotostanford · Answer

ok and then is that all i had to do for this question??

palwandew · Answer

Yeah thats it.

iwanttogotostanford · Answer

thanks so much!