Consider a solenoid of length l, n windings, and radius b (l is much longer than b). a current i is flowing through the wire. if the radius of the solenoid were doubled (becoming 2b), and all other quantities remained the same, the magnetic field inside the solenoid would a. would remain the same.

b. would become twice as strong.

c. would become one half as strong.

A.

Explanation:

The equation of Magnetic Field is given by

Where

Number of loops

I= current

constant of permeability of free space

As you can note, the magnetic field does not depend upon radius of the solenoid, therefore it would remain in same

the earths atmosphere is made up of nitrogen and oxygen. solids can turn into gasses through a process called sublimation. sublimation is the transition of a substance directly from the solid to the gas phase, without passing through the intermediate liquid phase.

hope this : d

electrical potential energy =0.072 j

explanation:

electrical potential energy is given by

u= q δv

q= charge=6 c

δv= potential difference and is given by

δv= e d

e= electric field

d= distance=5 mm=0.005 m

δv=2.4 (0.005)=0.012 v

now electric potential energy= u= q δv

u=6 (0.012)

u=0.072 j