A battery operating a large flashlight produces a current of 2 amperes
in a light bulb that has a resistance of 6 ohms. The voltage of the
battery is:
a. .5 volts
b. 2 volts 
c. 8 volts
d. 12 volts
e. none of the above

Hi again answer123 !!!!

The correct answer is d)12 Volts.

Acording to Ohm´s Law V = I x R = 2A x 6 ohms = 12 V.

See for reference:
"National Aeronautics and Space Administration (NASA) Glenn Research
Center -Learning Technologies Project - OHM'S LAW"
http://www.grc.nasa.gov/WWW/K-12/Sample_Projects/Ohms_Law/ohmslaw.html


And try this funny circuit simulator:
http://www.sciencejoywagon.com/physicszone/lesson/otherpub/wfendt/ohmslaw.htm


Keyword Search:
Ohm law

Search engine:
Google

Search Result page:
://www.google.com.ar/search?hl=es&ie=UTF-8&oe=UTF8&q=law+ohm&btnG=B%C3%BAsqueda+en+Google&meta=

I hope this helps you. Please feel free to request for any
clarification needed.

Regards.
livioflores-ga