Question

a. How much current would you need to suspend a wire in the magnetic field from the magnet we use in class? The magnet has a B-field of about 1000 Gauss in the gap: the wire's length is about 6 cm and has a mass of 50 grams. Force is up N S B b. Suppose that B=80mT, V=1000V. A charged ion (1.6022X10^-10) enters the chamber and strikes the detector at a distance x=1.6254m. What is the mass of the ion? B Detector + S

Answer 1

For second part using conservation of energy

Work done= change in K.E to find the relation between mass and velocity so that it is easy to determine the mass of the ion.

/ a ) Magnetic Force is given by FI I (LXB) for magnitude F = IIB Here magnetic Force a mg V mesog B = 1000 Gaus 103 x 10-4 = 01T = I IB 50 x 10-3 x 9.8 = IX 6 X 10-2 EAM X 0.1 Ts soxtors x 9.8 490 81-67 A 6 x los 6 mg bi Lane 6 ) y = 1.6254 m Diameter of semicircular loop r = Radiwa 0.8127m uring conservation of Energy work done = in ICE On Putting values 16022X1070 x 1032 change qu lamaz &xmv² > 2 we know that му vaq Br qB 1.6022 x 10-7 a fx mx q2B²8 me q2B²82 (4-6072x10-70) Box 10-3304 &*1.6022 x 10-7 aft fort X 107) 6777 2-627 x 10-13 Tons 1 x 10-6 33886:31 X 10-19 m.3.38810-15kg