30-05-2021 Series Circuit

# Q. What is a series circuit and its uses?

Dapzoi Commented on 2021-05-30 20:10:27 (IST)
Series circuits : A series circuit is a circuit in which resistors are arranged in a chain, so the current has only one path to take. The current is the same through each resistor. The total resistance of the circuit is found by simply adding up the resistance values of the individual resistors:
equivalent resistance of resistors in series : R = R1 + R2 + R3 + ..... Rn

Series Circuits:

1. Voltage drops add to equal total voltage.
2. All components share the same (equal) current.
3. Resistances add to equal total resistance.

Applications of series circuits :
All mains operated appliances have switches that are connected to the live wire (the wire that carries current into the appliance). When a switch is in series with a device, it controls the device, allowing us to switch it on and off.

For example, often lawnmowers have two switches in series with each other so that both switches need to be pressed before the mower will turn on.