Terminal voltage question?

Question

What is the terminal voltage of a large 1.54 V carbon-zinc dry cell used in a physics lab to supply 2.00 A to a circuit, if the cell's internal resistance is 0.100 ohm's? How much electircal power does the cell produce?

Answer 1

V=IR

V=2.00 A *  0.100 ohm's

V=0.2 V

total V = 1.54 V - lost V (0.2 V)

= 1.34 Volts

so POWER = VI  = 1.34 V * 2A = 2.68 WATTS

P.S.

the guy below me is wrong, even his formula/rule is wrong.

Answer 2

DC Power = Volts x Amps.  The internal resistance isn't important to the answer of this question.