PH-339
Magnetic effect of a current
Physics · Secondary 3 · Easy · Magnetic effect of a current
A long straight wire passes perpendicularly through a page. The current in the wire is out of the page. Using the right‑hand grip rule, what is the direction of the magnetic field at a point directly above the wire on the page?
- To the left
- To the right
- Towards the wire
- Away from the wire
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