Physics · Magnetic Effects of Electric Current
A constant current of 2 A is flowing through a long thick copper wire held horizontally in the east-west direction. If the direction of current in the wire is from west to east, the direction of the magnetic field produced would be from north to south directly:
- 1below at all points of the wire
- 2above at all points of the wire✓
- 3below only at the mid-point of the wire
- 4above only at the mid-point of the wire
Correct answer
above at all points of the wire
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