How Do You Calculate EMF with Ohm's Law?

[predentalgirl1]

1.What is the emf of a battery with a 0.15-ohm internal resistance if the battery delivers 1.5 A to an externally connected 5.0-ohm resistor?








Given that r = 0.15 ohm , I = 1.5 ohm , R = 5 ohm.

By Ohm’s law V = I ( R + r)
= 1.5 (5.15)
E=7.725 V

Is my work/answer correct?

 

[quantumdude]

Looks good to me.