Conductors and dielectrics in electric fields Electric field of a fish An A...

Conductors and dielectrics in electric fields

Electric field of a fish An African fish called the aba has a charge q = +1.0 x 10^-7 C at its head and an equal magnitude negative charge -q at its tail (see Figure P15.43). Determine the magnitude and direction of the electric field at position A and the force exerted on a hydroxide ion (charge -e) at that point. The fish and ion are in water.