A solenoid consists of 5000 turns (loops) of wire wrapped around a 1.20m long cylinder.

The solenoid is arranged so that the uniform magnetic field inside it points up . A positive- charge muon (q= +1.60 x10^-19C, m = 1.88 x 10^-28 kg ) located inside the solenoid loops has speed 40 x 10^3 m / s .

( a )if, at one point along its path , the positive - charge muon's velocity points downward , will it proceed to curve left , curve right , curve out of the page , or curve into the page to follow a circular path , or will it follow a straight line path ?

( b ) If , at one point along its path , the positive - charge muon's velocity points leftward , will it proceed to curve up , curve down , curve out of the page , or curve into the page to follow a circular path , or will it follow a straight line path ?

(c ) If , at one point along its path , the positive - charge muon's velocity points into the page , will it proceed to curve left , curve right , curve up , or curve down to follow a circular path , or will it follow a straight line path ?

( d ) In fact , the positive - charge muon does follow a circular path that has radius 12.0 cm . Use this radius to find the strength in unit uT( microTesla ) of the uniform magnetic field produced by the solenoid .

( e ) Find the current in unit mA ( milliAmpere ) flowing through the solenoid's wire loops to produce this field .