PH-1630
Magnetic effect of a current
Physics · Secondary 4 · Easy · Magnetic effect of a current
A long straight wire carries a current vertically upwards. Which diagram best shows the magnetic field pattern around the wire, viewed from above?
- Concentric circles with arrows clockwise
- Concentric circles with arrows anticlockwise
- Straight radial lines pointing outwards
- Straight radial lines pointing inwards
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