A wire with current of 4 A and length of 80 meter is positioned on a horizontal

Question

A wire with current of 4 A and length of 80 meter is positioned on a horizontal table with a rectangular top of dimensions 3 m by 4 m. The wire lies straight between the opposite ends of a diagonal of the rectangle. How much is the magnetic force in Newtons on this segment of wire if a vertical magnetic field of  1.5 T exists? A wire with current of 4 A and length of 80 meter is positioned on a horizontal table with a rectangular top of dimensions 3 m by 4 m. The wire lies straight between the opposite ends of a diagonal of the rectangle. How much is the magnetic force in Newtons on this segment of wire if a vertical magnetic field of  1.5 T exists? A wire with current of 4 A and length of 80 meter is positioned on a horizontal table with a rectangular top of dimensions 3 m by 4 m. The wire lies straight between the opposite ends of a diagonal of the rectangle. How much is the magnetic force in Newtons on this segment of wire if a vertical magnetic field of  1.5 T exists? A wire with current of 4 A and length of 80 meter is positioned on a horizontal table with a rectangular top of dimensions 3 m by 4 m. The wire lies straight between the opposite ends of a diagonal of the rectangle. How much is the magnetic force in Newtons on this segment of wire if a vertical magnetic field of  1.5 T exists? A wire with current of 4 A and length of 80 meter is positioned on a horizontal table with a rectangular top of dimensions 3 m by 4 m. The wire lies straight between the opposite ends of a diagonal of the rectangle. How much is the magnetic force in Newtons on this segment of wire if a vertical magnetic field of  1.5 T exists? A wire with current of 4 A and length of 80 meter is positioned on a horizontal table with a rectangular top of dimensions 3 m by 4 m. The wire lies straight between the opposite ends of a diagonal of the rectangle. How much is the magnetic force in Newtons on this segment of wire if a vertical magnetic field of  1.5 T exists? A wire with current of 4 A and length of 80 meter is positioned on a horizontal table with a rectangular top of dimensions 3 m by 4 m. The wire lies straight between the opposite ends of a diagonal of the rectangle. How much is the magnetic force in Newtons on this segment of wire if a vertical magnetic field of  1.5 T exists?

Explanation / Answer

Force = i*l*B = 4*l*1.5    here l= root of (3^2+4^2) =5

Hence force F= 4*5*1.5 = 30 N

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