How does the magnet exert a force on the metal coil without touching?

A magnetic field and an electric conductor, such as a coil of wire, moving relative to one another. Current will flow whenever the conductor crosses lines of force with the magnetic field The faster the magnet or coil moves (or more coils/more current), the greater the amount of current that is produced.

note: the given question is incomplete.

complete question is given below.

which is an example of kinetic energy?

a. the energy stored in ethanol  

b. a hockey puck sliding across the ice  

c. a compressed spring  

d. a ball sitting at the top of a ramp

solution: the kinetic energy is the energy posses by the virtue of the motion of the object.

in the given options, a, c and d are the example of potential energy because it is the energy posses by the virtue of the rest of the object. but option b has the kinetic energy as the object is in motion.

hence, a hockey puck sliding across the ice   is the apex example of kinetic energy.

so, the option (b) a hockey puck sliding across the ice   is the correct option.

i already answered it by 34/s