If a larger current passes through the coil of an electromagnet what happens

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.)

real, smaller and upside-down.   so the answer should be b.

resonant frequency