Any key words? That they put there
The sparse area surrounding a spiral galaxy is called its halo. Hoped this helped!
Distance = velocity * time
1 hour and 15 minutes = 1.25 hours
25km/hr * 1.25 hours = 31.25km
Answer:
A. When the current is shut off, the magnetic field disappears.
Explanation:
Electromagnetism is a method in which magnetism is obtained from an electric current. It is an artificial way of producing a strong magnetic fields due to the flow of current.
Since the magnetic effect observed is due to the flow of an electric current, so when the current is shut off, the magnetic field disappears.
It has a wide range of applications in manufacturing industries, electric bells, induction coil etc.
