If you are describing the displacement of an object with respect to a reference point, you should use a. a scalar. b. a vector. c. a magnitude. d. a description.

at positions a, g kinetic energy is maximum.

at position d, potential energy is maximum.

the amount of current in the coil

force required to detach it is given by

charges are taken to be fundamental charge

now we have

so above is the minimum distance at which it will detach