 asked in category: General Last Updated: 20th January, 2020

# Is KCL valid for open circuit?

Yes it is valid if the open circuit has a node in it . As KCL states that the total incoming current across a node is equal to the total outgoing current .

Keeping this in consideration, is KVL or KCL valid for open circuit?

KCL and KVL are not good for high frequency AC circuits. KCL is valid only if the total electric charge is constant in the circuit. KVL is based on the assumption that there is no changing magnetic field within the closed circuit.

Likewise, is KCL applicable to AC circuit? Kirchhoff's first law KCL concept for combinations of the load is explained. The Kirchhoff current law is also applicable in AC circuit, provided the summation of the current is done in vector form or using instantaneous value for the circuit consisting of inductors, resistor and capacitors together.

Likewise, people ask, is Kvl valid for open circuit?

"KVL is applicable in open circuit too." How can this statement be justified? If you look at an open circuit as a circuit with an infinite resistance, you can apply KVL without ambiguity. Suppose your source is 10 volts. Leads are taken out from the positive and negative ends of the source and left open.

How do you use KCL in a circuit?

The node-voltage method (nodal voltage analysis) based on KCL:

1. Assume there are nodes in the circuit.
2. Express each current into a node in terms of the two associated node voltages.
3. Apply KCL to each of the nodes to set the sum of all currents into the node to zero, and get equations.

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