Ria needs to calculate the number of turns that a solenoid should have – McqOptions

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1.	Ria needs to calculate the number of turns that a solenoid should have, in order to induce a voltage of 50 V provided that the magnetic flux in its cavity changes from 70 mWb to 20 mWb per time 0.20 s. What will be her answer?
A.	50
B.	2
C.	20
D.	200
Answer» E.

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