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A 9 A current passes through a straight conductor wire with length 4m and radius 2m...

A 9 A current passes through a straight conductor wire with length 4m and radius 2m located in 90 T magnetic field.

calculate :

1) the magnetic force

2) Surface current density

3) volume current density

4) speed of electrons if the volume current density is 2 C/m^3

5) Surface current density if the electron's speed is 2x10^3 m/s

Science   Advanced-Physics   
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