3.a long solenoid carrying a current produces a magnetic field B along its axes. If the number of turns per cm is tripled and the current is halved, then the new value of magnetic field will be?
a. 4B
b. 2B
c.3B/2
d. B/2
Answers
Answered by
2
Answer:
c 3b/2
Explanation:
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Answered by
0
Answer:
Explanation: 4B
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