A 20.0 Ω, 12.0 Ω, and 7.00 Ω resistor are connected in parallel to an emf source. A current of 8.00 A is in the 12.0 Ω resistor. Calculate the equivalent resistance of the circuit. Answer in units of Ω.

3.62 ohms

Explanation:

Equivalent resistance in parallel is given as

The equivalent resistance of 20.0Ω, 12Ω, and 7Ω all in parallel

now we have

a charge 3q is at the origin, and a charge −2q is on the positive x axis at x=a. part a where on the x-axis would you place a third charge so it would experience no net electric force? enter an expression for the exact answer, which will involve a square-root sign. (do not enter an approximate decimal answer.)

i really dont know but i will try okay.

so i think u would just add all them up and get your answer..