Author Question: Four +6.00-C point charges are at the corners of a square 2.00 m on each side. What is the electric ... (Read 94 times)

itsmyluck · **on:** Jul 29, 2018

Four +6.00-C point charges are at the corners of a square 2.00 m on each side. What is the electric potential of these charges, relative to infinity, at the center of this square? (k = 1/40 = 8.99 109 N m2/C2 )

A) 76.4 kV
B) 38.2 kV
C) 306 kV
D) 153 kV
E) 61.0 kV

Question 2

How many turns should a 10-cm long ideal solenoid have if it is to generate a 1.5-mT magnetic field when 1.0 A of current runs through it? (0 = 4 10-7 T m/

A)
A) 12
B) 15
C) 120
D) 1200
E) 3200