Question

Select all the statements that explain how the Sun's magnetic field makes the corona hot.

a) Magnetic reconnection releases energy.
b) Magnetic fields trap heat in the corona.
c) Magnetic fields accelerate particles.
d) Magnetic fields block solar radiation.

Answer 1

The Sun's magnetic field makes the corona hot through magnetic reconnection, particle acceleration, and heat trapping.

Step-by-step explanation:

The Sun's magnetic field plays a role in making the corona hot through various mechanisms.

1. Magnetic reconnection releases energy: When the Sun's magnetic field lines get twisted and tangled, they can suddenly rearrange themselves, releasing a burst of energy in the form of flares and explosions. This energy heats up the corona.
2. Magnetic fields accelerate particles: The Sun's magnetic field can accelerate charged particles, such as electrons and protons, to high speeds. These fast-moving particles collide with other particles in the corona, transferring energy and heating up the region.
3. Magnetic fields trap heat in the corona: The Sun's magnetic field can act as a barrier, trapping hot plasma within magnetic loops. This trapped plasma retains heat, contributing to the high temperature of the corona.