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