The directed sum of the electrical potential differences(voltage) around any closed network is zero.
OR
The sum of the emfs in any closed loop is equivalent to the sum of the potential drops in that loop.
OR
The algebraic sum of the products of the resistances of the conductors and the currents in them in a closed loop is equal to the total emf available in that loop.
(The sum of all the voltages around the loop is equal to zero. v1 + v2 + v3 - v4 = 0)
Here, n is the total number of voltages measured in a loop.
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Ref: wikipedia
OR
The sum of the emfs in any closed loop is equivalent to the sum of the potential drops in that loop.
OR
The algebraic sum of the products of the resistances of the conductors and the currents in them in a closed loop is equal to the total emf available in that loop.
(The sum of all the voltages around the loop is equal to zero. v1 + v2 + v3 - v4 = 0)
Here, n is the total number of voltages measured in a loop.
----------------------
Ref: wikipedia
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