An electron moving with a velocity v = 5.0 × 10^7 m/s i enters a region of space where perpendicular electric and a magnetic fields are present. the electric field is e = 104 v/m j. what magnetic field will allow the electron to go through the region without being deflected?

2.08 x 10⁻⁶ T

Explanation:

= velocity of electron = 5.0 x 10⁷ m/s

q = charge on electron

B = magnetic field = ?

E = electric field = 104 V/m

Magnetic force on the electron is given as

Electric force on the electron is given as

For the electron to pass without being deflected, we must have

(5.0 x 10⁷) B = 104

B = 2.08 x 10⁻⁶ T

0.93xc=0.93x3x10^8m/s

2.54cm is 1 inch

360seconds i 1 hr