An electron moving with a velocity right ray(v) = 5.0E7 m/s hat(i) enters a region of space where perpendicular electric and a magnetic fields are present. The electric field is right ray(= hat(j). What magnetic field will allow the electron to go through the region without being deflected? right ray(= +2.0E-4 T hat(j) right ray(= -2.0E-4 T hat(k) right ray(= -2.0E-4 T hat(j) right ray(= +2.0E-4 T hat(k) right ray(= +5.0E-4 T hat(k)

An electron moving with a velocity right ray(v) = 5.0E7 m/s hat(i) enters a region of space where perpendicular electric and a magnetic fields are present. The electric field is right ray(= hat(j). What magnetic field will allow the electron to go through the region without being deflected? right ray(= +2.0E-4 T hat(j) right ray(= -2.0E-4 T hat(k) right ray(= -2.0E-4 T hat(j) right ray(= +2.0E-4 T hat(k) right ray(= +5.0E-4 T hat(k)

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right ray(= +2.0E-4 T hat(j)

right ray(= -2.0E-4 T hat(k)

right ray(= -2.0E-4 T hat(j)

right ray(= +2.0E-4 T hat(k)

right ray(= +5.0E-4 T hat(k)

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