Answer :
Zero
According to the law of conservation of energy, all voltage sources inside the loop must have an equal amount of voltage drop outside of it. The result is that given a closed-loop path, the total potential differences across all of the circuit's closed loop elements equals zero. Alternatively called Kirchhoff's Voltage Law.
How does Kirchhoff's law work?
Kirchhoff's rules can assist you in understanding the relationship between current and voltage in a circuit and can also be used to examine more complex circuits that can't be simplified to a single equivalent resistance using what you already know about series and parallel resistors.
According to Kirchhoff's junction law, the total currents flowing into and out of a junction must be equal.
According to Kirchhoff's loop law, the total of the voltage variations within and outside of a closed circuit must always equal zero.
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