Multiple Choice
-A solenoid of length 18 cm consists of a wire wrapped tightly around a wooden core.The magnetic field strength is 2.0 T inside the solenoid.If the solenoid is stretched to 29 cm by applying a force to it,what does the magnetic field become?
A) 1.2 T
B) 3.2 T
C) 15 T
D) 2.0 T
Correct Answer:

Verified
Correct Answer:
Verified
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