Two Loops of Wire Are Arranged So That a Changing

question 42

Multiple Choice

Two loops of wire are arranged so that a changing current in one,the primary,will induce a current in the other,the secondary.The secondary loop has twice as many turns as the primary loop.The current in the primary at this moment is 3 A and increasing.The current in the secondary must be

• A)3 A.
• B)6 A.
• C)zero.
• D)There is insufficient information to work this problem.