They were able to find the orbit of a comet and predict the year of its return.
Answer:
Explanation:
Magnetic field due to moving charge =

q is charge moving with velocity v and r is distance from point at which field is calculated .
For alpha particle

= 0.1316 x 10⁻³ T
For electron

= .0658 x 10⁻³ T .
Both these magnetic field will be same in direction because direction of equivalent current is same for both the particles .
Hence
Total magnetic field
= B₁ + B₂ = .1974 x 10⁻³
= 1.974 x 10⁻⁴ T .
Betelgeuse, the bright red star in the constellation of Orion the Hunter, is in the end stage of its stellar life. Astronomers have long thought it will someday explode to become a supernova. In late 2019 and early 2020, Betelgeuse generated a lot of