A circular solenoid has 100 loops per centimeter, a radius of 4.53 cm, a length of 8.88 cm, and carries a current of 500 mA. It's inductance is: a) 7.75 mH
b) 71.9 mH
c) 18.0 mH
d) 0.912 mH

The inductance of the solenoid is 71.98 mH

Explanation:

Given;

number of loops per length of the solenoid, n = 100 loops/cm

radius of the solenoid, r = 4.53 cm

length of the solenoid, L = 8.88 cm

current carried by the solenoid, I = 500 mA

The inductance of the solenoid is calculated as;

where;

A is the area of the coil

N is the number of turns, = 100 x 8.88 = 888 loops

l is the length = 0.0888 m

Therefore, the inductance of the solenoid is 71.98 mH

  the unit of the measure =

explanation:

  the property that is quantified by the energy needed per of material to raise the temperature by one.

  si unit of energy = joule (j)

  si unit of temperature = kelvin (k)

  si unit of mass of material = kilogram (kg)

the property that is quantified by the energy needed per of material to raise the temperature by one is called specific heat.

the unit of specific heat is