An electron moves with velocity 5 Mm/s in the xy plane at an angle of 30degree t

Question

An electron moves with velocity 5 Mm/s in the xy plane at an angle of 30degree to the x axis and 60degree to the y axis. A magnetic field of 1.5 T is in the positive y direction. Find the force on the electron. A straight wire segment 2 m long makes an angle of 60degree with a uniform magnetic field of 4000 G. Find the magnitude of the force of the wire if it carries a current of 2.5 A. A straight wire 20cm long carrying a current of 3.0 A is in a uniform magnetic field of 0.8 T. The wire makes an angle of 37degree with the direction of B. What is the magnitude of the force on the wire? A long wire parallel to the x axis carries a current of 14 A in the direction of increasing x. There is a uniform magnetic field of magnitude 8000 G in the positive y direction. Find the force per unit length on the wire. Section 21-2 Torques on Magnets and Current Loops A small magnet is placed in a magnetic field of 0.15 T. The maximum torque experienced by the magnet is 0.20 Nm(a)

Explanation / Answer

F = i L X B ;

F = i L B sin 60 ;

F = 2.5 * 2 *4000 *( 1 e -4 ) sin 60

F = 1.7320 N   <--ans

1 G = 1 e -4 T ;

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