# The circuit consists of a source with an emf of 14v and an internal resistance of 2 ohms, the external resistance

August 29, 2021 | education

| **The circuit consists of a source with an emf of 14v and an internal resistance of 2 ohms, the external resistance of the circuit is 5 ohms, which is equal to the current in the circuit.**

To find the value of the current in a given circuit, we will use the formula: I = ε / (R + r).

Variables: ε – EMF of the source used (ε = 14 V); R – external resistance (R = 5 Ohm); r – internal resistance (r = 2 ohms).

Calculation: I = ε / (R + r) = 14 / (5 + 2) = 2 A.

Answer: The current in a given circuit is 2 A.

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