physics
posted by Ray .
A battery with an emf of 14.5 V and internal resistance of 0.83 Ω is connected across a load resistor R.
If the current in the circuit is 0.81 A, what is the value of R?

I=14.5/(R+.83)
solve for R 
85A
posted by Ray .
A battery with an emf of 14.5 V and internal resistance of 0.83 Ω is connected across a load resistor R.
If the current in the circuit is 0.81 A, what is the value of R?
I=14.5/(R+.83)
solve for R
85A