An infinite conducting sheet lies in the xy plane It has a w

An infinite conducting sheet lies in the xy plane. It has a width of 4.5 cm and a current density of 5200 A/m² in the negative y-direction. An electron (m_e=9.11×10^-31 kg and q_e=-1.60×10^-19 C) moves parallel to the sheet with a velocity of 2.5×10⁶ m/s in the positive y-direction and with an initial z-position of 4.0 cm. What is the the direction of the force on the electron?

Solution

Part A)

ApplyB = uJ/2

B = (4pi X 10^-7)(5200)/2

B = 3.27 X 10^-3 T

Part B)

By the right hand rule, the direction of the force is in the positive x direction