Author Question: The gravitational force exerted on a particle outside a sphere with a spherically symmetric mass ... (Read 196 times)

fbq8i · **on:** Jul 29, 2018

The gravitational force exerted on a particle outside a sphere with a spherically symmetric mass distribution is the same as if the entire mass of the sphere was concentrated at its center.

Indicate whether the statement is true or false

Question 2

An inductor has a current I = 0.5A cos( 275 s-1 ) t . The maximum emf across the inductor is equal to 0.5 V. What is the self-inductance of the inductor?

A)

4.37 mH
B)

3.64 mH
C)

2.75 mH
D)

0.73 mH
E)

1.43 mH