Question

A battery whose fem is 12V and with an internal resistance of .05Ω. Its terminals are...

A battery whose fem is 12V and with an internal resistance of .05Ω. Its terminals are connected to a resistor of 3Ω.
a) find the current in the circuit and the voltage at the battery terminals b) what is the voltage at the resistor?
c) what is the power delivered to the external resistor, the power at the internal resistance and the total power

Note: explain step by step

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