Question

a battery whose emf is 40V has an internal resistance of 5ohm.If this battery is connected to a 15ohm resistor R what will be the voltage drop across R

Answer 1

Hola User___________

Here is Your Answer...!!!
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⭐Actually welcome to the concept of the CURRENT ELECTRICITY

⭐BY the Kirchoffs Law we get

Answer 2

Here is your solution

Given:-

a battery whose emf is 40V has an internal resistance of 5ohm

Now,

The total circuit resistance is 20 Ohms (5 + 15)

Your EMF of 40V will cause 2 Amps to flow through the circuit.

2 Amps through the 15 Ohm resistor will develop 30 volts across it.

Answer - 30 Volts.

Hope it helps you