Each of the following shows three currents, I1, I2, and I3. All currents are the

Question

Each of the following shows three currents, I1, I2, and I3. All currents are the same, with their directions indicated-either into or out of the page, b is always out of the page. The distance shown with leftarrow rightarrow is always d no matter what orientation it is. Which configurations below have a force on I3 that is upward relative to the page? Rank the net forces on I3 that are upward, from largest to smallest. Which configurations below have a net magnetic field at the position of I3 that is upward relative to the page? Rank the net magnetic fields at position of I3 that are upward, from largest to smallest

Explanation / Answer

a)

wires carrying current in same direction attaract each other and wires with opposite current repul.

Using the above fact , the required configuration is D , K , L

b)

D >L>K

c)

the required configuration is B , K , L

d) B

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