When "in" side of two or more resistors is connected together it is known as parallel resistor, it can be explained with this equation
Req = 1/{(1/R1)+(1/R2)+(1/R3)..+(1/Rn)}
Use this online electrical engineering calculator to calculate resistance in parallel circuits."

Parallel Resistance

To calculate Parallel Resistance:

Number of Resistors

amps

Parallel Resistance value in a Circuit

Ohms

Formula:

Where,
R_{1},R_{2},...R_{n} are the individual resistor values
R_{total} is the total resistance value in parallel

When ""in"" side of two or more resistors is connected together it is known as parallel resistor, it can be explained with this equation
Req = 1/{(1/R1)+(1/R2)+(1/R3)..+(1/Rn)}
Use this online electrical engineering calculator to calculate resistance in parallel circuits."