# Identical solenoids current problem?

Two identical solenoids are connected to each other so that they carry the same current, and are inserted through two loops in an electrical circuit, as shown left diagram. The solenoids are oriented such that when you look from one end, the currents are circulating in opposite directions, as shown in the second... show more Two identical solenoids are connected to each other so that they carry the same current, and are inserted through two loops in an electrical circuit, as shown left diagram. The solenoids are oriented such that when you look from one end, the currents are circulating in opposite directions, as shown in the second diagram. For a period of time, the current flowing through the solenoids is changing in a steady linear manner: I(t) ~ t. During this time, the current measured in ammeter A1 is a constant Io. What is the value of the current flowing through ammeter A2 during this time?

a.A2 reads a current Io.

b.A2 reads a current 2Io/3.

c.A2 reads a current 3Io/2.

d.A2 reads a current 3Io.

e.A2 reads a current 4Io
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