Question

When one applies Kirchhoff's loop rule, the algebraic sum of potential drop across the cell is resistors is zero, why? Write practical application of this law

Answer 1

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Kirchhoff's loop law says that the sum of the changes in voltage around and closed loop in a circuit must always be zero. This means that if you add up the voltage across each circuit element all the way around the loop, you would get zero.

$practical \: application$

The practical application of KCL is to determine the amount of current flowing through individual electronic component in a circuit. Using that law we can manipulate current to the component by controlling resistance to it.

The practical application of KCL is to determine the amount of current flowing through individual electronic component in a circuit. Using that law we can manipulate current to the component by controlling resistance to it.The KCL states that for a balanced network, the current coming at a node is equal to current outgoing. So, on a simple note, we can balance a given circuit by adjusting voltage and current so that at a selected node, the current if measured is zero because incoming current = outgoing current. So, by balancing we can calculate a no. of parameters from a circuit.

Hopefully it will help you!!

Answer 2

Answer : Kirchhoff's loop law says that the sum of the changes in voltage around and closed loop in a circuit must always be zero. This means that if you add up the voltage across each circuit element all the way around the loop, you would get zero. Kirchhoff’s second rule (the loop rule) is an application of conservation of energy.

Explanation:

• Kirchhoff's loop law says that the sum of the changes in voltage around and closed loop in a circuit must always be zero. This means that if you add up the voltage across each circuit element all the way around the loop, you would get zero.

• The practical application of KCL is to determine the amount of current flowing through individual electronic component in a circuit. Using that law we can manipulate current to the component by controlling resistance to it. The KCL states that for a balanced network, the current coming at a node is equal to current outgoing. So, on a simple note, we can balance a given circuit by adjusting voltage and current so that at a selected node, the current if measured is zero because incoming current = outgoing current. So, by balancing we can calculate a no. of parameters from a circuit.
• Practical Application of this law is balanced Wheatstone bridge.
• It helps in knowing the direction of current in different loops of Wheatstone bridge.
• Kirchhoff’s Laws are useful in understanding the transfer of energy through an electric circuit.

Hence, When one applies Kirchhoff's loop rule, the algebraic sum of potential drop across the cell is resistors is zero Because of Conservation of Energy.