Two wires are carrying current, as shown below. You do not know how much current
ID: 2091921 • Letter: T
Question
Two wires are carrying current, as shown below. You do not know how much current is flowing in the wire on the left. , wire A. You do know that: 1. 5mA is flowing downward through wire B. 2. the B-field at a point 5mm to the right of wire B is zero. 3. the distance between wire A and wire B is 20mm. Using your knowledge of how the thumb points in the direction of the current and the n the fingers wrap in the direction of the B-field. what is the direction and magnitude of the current in wire A? And what is the direction and magnitude of the B-field at the midpoint between the two wires?Explanation / Answer
B due to right wire at point B is out of the page. so to cancel it B due to left wire should be inside the page
thus CURRENT IN LEFT WIRE IS GOING UPWARDS
Magnitude of CURRENT IN WIRE ON THE LEFT = 25 mA .
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