In: Physics
An electron moves with a speed of 3.0
Figure (a) ::: V = - 3*10^7 y^
B = 0.3 x^
q = charge on electron = -1.6*10^-19 c
F = force
F = qV x B
= qVB
= 1.6*10^-19 * 3*10^7 *0.3
= 1.44*10^-12 N
forgure (b) V = 3*10^7 [ - cos(45) y^ + sin(45) z^]
V = 2.12*10^7 [ - y^ + z^]
B = 0.3 x^
q = charge on electron = -1.6*10^-19 c
F = qV x B
= q*2.12*10^7 [ - y^ + z^] x [ 0.3 x^ ]
= q * 2.12*10^7 * 0.3 [ z^ + y^]
= 1.6*10^-19* 2.12*10^7 * 0.3 [z^ + y^ ]
=1.017*10^-12 [z^ + y^ ]
magnitude = 1.017*10^-12 * sqrt(2) = 1.43*10^-12 N