31_Ch 19 College Physics ProblemCH19 Magnetism

31_Ch 19 College Physics ProblemCH19 Magnetism - Magnetism...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
Magnetism 171 Thus, the downward magnetic force acting on the wire is () ( ) 23 2 19.6 N m 0.80 10 m 10.0 10 kg 9.80 m s 5.9 10 N m total Fk x m g −− =− × sin90 m 2 Since the magnetic force is given by F BIL = ° , the magnetic field is ( )( ) 2 2 12 5.9 10 N 0.59 T 24 V 5.0 10 m mm FF B IL V R L Ω× == = = × 19.67 Each turn of wire occupies a length of the solenoid equal to the diameter of the wire. Thus, the number of turns on the solenoid is 75.0 cm 750 0.100 cm solenoid wire L N d = The length of wire required to make this number of turns on the solenoid is ( ) ( ) ( ) 2 750 10.0 10 m 75.0 m solenoid id N d ππ = × N circumference of soleno l π = and this copper wire has a resistance of ( ) 8 Cu Cu 2 2
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 12/09/2011 for the course PHYS 2020 taught by Professor Staff during the Fall '10 term at FIU.

Ask a homework question - tutors are online