Two Long Parallel Wires 10 Cm Apart Carry Currents of 4.2

question 45

Multiple Choice

Two long parallel wires 10 cm apart carry currents of 4.2 A and 8.7 A in the same direction.Is there any point between the two wires where the magnetic field is zero?

• A) yes,midway between the wires
• B) yes,6.7 cm from the 4.2-A wire
• C) yes,3.3 cm from the 4.2-A wire
• D) yes,3.3 cm from the 8.7-A wire
• E) ​no.

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