Which is the most important radiation conduction or convection?Explain

convection is more important

In convection there is actual movement of fluid particles for heat transfer whereas in conduction, the particles only vibrate at their position and transfer heat. Due to this kinetic energy transfer in convection is faster than conduction and hence convection is the more efficient way of heat transfer than conduction

probably not the "magnets"in the magnet, so to speak, are thought to be electrons orbiting in shells. vurrent loops two sides to the loop