# Ohm’s and Kirchhoff’s Laws – Study Material

0 #### Ohm’s and Kirchhoff’s Laws – Study Material

Ohm’s law defines When the temperature remains constant, current flowing through a circuit is directly proportional to potential difference across the conductor.

Ohm’s and Kirchhoff’s Laws – Study Material

#### Synopsis

• Ohm’s Law
• Kirchhoff’s Laws
• Inductance
• Capacitance

Ohm’s Law:

• When the temperature remains constant, current flowing through a circuit is directly proportional to potential difference across the conductor.

Kirchhoff’s Laws:

• Kirchoff’s Voltage Law: The algebraic sum of all branch voltages around any dosed loop at a network is zero at all instant of time.
• Kirchoff’s Current Law (KCL):  “Sum of the currents entering a node is same as the sum of the currents leaving the node”.

Inductance:

• When a time varying current passes through a circuit varying flux is produced. Because of this change of flux, voltage is induced in the circuit proportional to the time rate of change of flux or current.

Capacitance:

• A capacitor is a circuit element that, like the inductor, stores energy during periods of time and returns the energy during others.
• In the capacitor, storage takes place in an electric field unlike the inductance where storage is in a magnetic field. A capacitor is formed by two parallel plates separated by an insulating medium.