Question

Which of the following factors would decrease the magnetic field strength of an electromagnet? (1 point)
increasing the distances between the turns of the coil
O using an iron core or nail
increasing the number of turns in the coil of wire
increasing the current or using a higher-voltage power source

Answer 1

What happens when thermal energy is applied to water? (1 point)
Its molecules lose kinetic energy.
Its molecules gain kinetic energy.
Its molecules gain potential energy.
The water creates steam as soon as thermal energy is applied.

Answer 2

increasing the distances between the turns of the coil

Answer 3

Its molecules gain kinetic energy.