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Question
Physics
Which one of the following is correct statement about magnetic forces?
Q. Which one of the following is correct statement about magnetic forces?
2574
223
Moving Charges and Magnetism
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A
Magnetic forces always obey Newton’s third law
20%
B
Magnetic forces do not obey Newton’s third law
61%
C
For very high current, magnetic forces obey Newton’s third law
11%
D
Inside low magnetic field, magnetic forces obey Newton’s third law
8%
Solution:
As the action and reaction are instantaneous in
II
I
r
d
law But magnetic forces transmit with finite speed
c