An electric field strength created by charge Q is measured to be 40 N/C at a distance of 0.2 m from the center of the charge. What is the new field strength when the distance from the center of Q is changed to 0.4 m away with twice the charge of Q?
A. 10 N/C
B. 20 N/C
C. 40 N/C
D. 80 N/C
Answer:B
An electric field strength created by charge Q is measured to be 40 N/C at a distance of 0.2 m from the center of the charge. What is the new field strength when the distance from the center of Q is changed to 0.4 m away with twice the charge of Q?
A. 10 N/C B. 20 N/C C. 40 N/C D. 80 N/C