Question

A battery has an internal voltage (EMF) of 12 and an internal resistance of 5 ohms. If the terminal voltage of the battery is 9.5 volts, calculate the current through the battery (in milliamps).

Answer 1

current is 1.357 A

Step-by-step explanation:

given data

internal voltage = 12

resistance = 5 ohms

voltage = 9.5 volts

to find out

current

solution

we apply internal resistance formula for find out current that is

resistance = internal voltage - voltage / current ...................1

put here all value in equation 1 to find current

so

5 = 12 - 9.5 / current

solve it and we get current

current = 1.357 A

so current is 1.357 A