close loop

A close loop is placed in a time-varying magnetic field. Electrical power is dissipated due to the current induced in the coil. If the number of turns were to be quadrupled and the wire radius halved keeping the radius of the loop unchanged, the electrical power dissipated would be :

What will be the acceleration of the bar magnet, if the loop had a cut in between (or if it was not a closed loop)?

Solve the previous question if the closed loop is completely enclosed in the circuit containing the switch.

Does Ampere's law on a closed loop in a region is valid if no current is enclosed by the loop and there are some currents which exist outside the loop.

Assertion : An emf vec(E) is induced in a closed loop where magnetic flux is varied. The induced vec(E) is not a conservative field. Reason : The line intergral vec(E).vec(dl) around the closed loop is non-zero.