Collections of Charges:Current Carrying Wires
Magnetic Force on Current-Carrying Wire
Current is moving charges, and we know that moving charges feel a force in a magnetic field
PRS Question:Parallel Current Carrying Wires
PRS: Parallel Wires
Consider two parallel current carrying wires. With the currents running in the same direction, the wires are
attracted (likes attract?)repelled (likes repel?)pushed another directionnot pushed – no net forceI don’t know
PRS Answer: Parallel Wires
I1 creates a field into the page at I2. That makes a force on I2 to the left.I2 creates a field out of the page at I1. That makes a force on I1 to the right.
Answer: 1. The wires are attracted
Demonstration:Parallel & Anti-Parallel Currents
Summary Magnetic Force
Can we understand why?
Whether they attract or repel can be seen in the shape of the created B field
Field Pressures and Tensions:A Way To Understand the qVxB Magnetic Force
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