What is the current in a 5.09 ohm resistor connected to a battery that has a .1 ohm internal resistance when t

Answer 1

Not enough information (I think you got cut off)

But, the formula you are looking for where current relates to resistance and voltage is part of ohms law. To get current, it is going to be:

Current = Voltage divided by Resistance (I = V/R for short)

Answer 2

The information is not complete.
However, in a series connected circuit use the following formula
Current(I)=Voltage(V)/{external resistance(R)+internal resistance of the battery(r)}

Answer 3

haha, are you in the same class as jeramiah Q? he jsut asked the same question in the physics section