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A) what is the terminal voltage of the battery?

B) What is its internal resistance

V = 12.0

R = 6.00

I = 1.90

I think i am to use V = emf - IR for terminal voltage right? however i do not know how to get emf, and IR is current x resistance right? i got the equation off google and it didnt explain so i am assuming? i am stuck on both a and b