Two point charges, 91 and 92, are located a distance r apart in a vacuum. Which change to the charges will halve the magnitude of the electric charge between them?
A. reducing the distance between them by one half
B. reducing the magnitude of each charge by one-half
C. doubling the distance between them
0
D. reducing the magnitude of one of the charges by one-half
Το
B

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so easy. just google the electromagnetic waves and it’ll pop up.

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