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A battery operating a large flashlight produces a current of 2 amperes in a light bulb...

A battery operating a large flashlight produces a current of 2 amperes in a light bulb that has a resistance of 4 ohms. The voltage of the battery is

a.

0.5 volts.
b.

2 volts.
c.

8 volts.
d.

none of the above.
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Answer #1

Solution:

Given:

Current (I) = 2 A

Resistance (R) = 4 Ohm

According to Ohm's Law: V = I R

Thus: V = (2 A)(4 Ohm) = 8 V

Therefore: The voltage of the battery is: (C) 8 Volts

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