The current flowing in the emf source E2 is the ratio of E2 to equivalent resistance of the circuit.
Equivalent resistance of the circuit
For series circuit arrangement, the equivalent resistance is the sum of all the component resistor.
For parallel circuit arrangement, the equivalent resistance is the sum of inverse components of the resistors.
I = E/R
where;
R is the total resistance of the circuit
I₂ = E₂/R
I₂ = 5/R
Thus, the current flowing in the emf source E2 is the ratio of E2 to equivalent resistance of the circuit.
Learn more about current in series and parallel circuit here: https://brainly.com/question/82566
