A metallic laboratory spring is typically 5.00 cmcm long and 0.150 cmcm in diameter and has 50 coils. Part A If you connect such a spring in an electric circuit, how much self-inductance must you include for it if you model it as an ideal solenoid? Express your answer to three significant figures and include the appropriate units.

Explanation:

= Vacuum permeability =

l = Length of spring = 5 cm

d = Diameter = 0.15 cm

A = Area =

N = Number of turns = 50

Inductance is given by

The self inductance is

0.863333

86%

hope this

see the picture for the vector

the magnitude of the vector by pythagorean theorem

r = √( (-10)^2 + (3)^2 ) = √109

magnitude = √109 units

the direction angle between vector and x-axis is

tan^(-1)(3/10) = 16.699

so the direction is approximately 16.7 degrees north of west