Solve for the equivalent resistance in each of the scenario: A 20{,25{,20{ Resistor connected in parallel

Answer 1

To find the equivalent resistance of resistors connected in parallel, you use the formula:

1/Req = 1/R1 + 1/R2 + 1/R3 + ...

In this case, the equivalent resistance (Req) is equal to:

1/Req = 1/20 + 1/25 + 1/20

To simplify, you can find the common denominator:

1/Req = (25/500) + (20/500) + (25/500)

1/Req = 70/500

To find the reciprocal, invert both sides:

Req = 500/70

Simplifying gives:

Req = 7.14 ohms

Therefore, the equivalent resistance of three 20Ω, 25Ω, and 20Ω resistors connected in parallel is 7.14 ohms.