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23. (a) A uniform magnetic field of 1.5 T exists in a cylindrical region of radius 10.0 cm, its direction parallel to the axis along east to west. A wire carrying current of 7.0 A in the north-to-south direction passes through this region. What is the magnitude and direction of the force on the wire if the wire intersects the axis?
Answers (1)
The length of wire inside the magnetic field is equal to the diameter of the cylindrical region: 20.0 cm = 0.2 m.
Magnetic field strength = 1.5 T.
Current flowing through the wire: 7.0 A
The angle between the direction of the current and magnetic field is 90°.
Force on a wire in a magnetic field is calculated by relation,
This force, due to the magnetic field inside the cylindrical region, acts on the wire in a vertically downward direction.
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