Author Question: Two +6.0-C charges are placed at two of the vertices of an equilateral triangle having sides 2.0 m ... (Read 211 times)

strangeaffliction · **on:** Jul 29, 2018

Two +6.0-C charges are placed at two of the vertices of an equilateral triangle having sides 2.0 m long. What is the electric potential at the third vertex, relative to infinity, due to these charges? (k = 1/40 = 9.0 109 N m2/C2 )

A) 108 V B) 54 kV C) 90 kV D) 0 V E) 27 kV

Question 2

A 2.0-F capacitor is charged to 12 V and then discharged through a 4.0-M resistor. How long will it take for the voltage across the capacitor to drop to 3.0 V?

A) 22 s B) 11 s C) 24 s D) 8.0 s