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A) What is the velocity of a beam of electrons that goes undeflected when passing through perpendicular electric and magnetic fields of magnitude 8.2 X 103 V/m and 6.5 X 10-3 T, respectively? B) What is the radius of the electric orbit if the electric field is turned off?

A charged particle traveling at a speed of 9.60x10^4 m/s through a uniform magnetic field of magnitude 7.50mT experiences a magnetic force of magnitude 4.50 X10^13N. Assuming that the velocity of the particle is perpendicular to the direction of the magnetic field, determine the magnitude of the particle's charge q in coulombs.

A)What is the velocity of a beam of electrons that goes undeflectedwhen passing through perpendicular electric and magnetic fields ofmagnitude 6800 v/m and 7.8×10-3T , respectively?
B)What is the radius of the electron orbit if the electric field isturned off?

An electron experiences a force F=(3.8i-2.7j)x10^-13 N when passingthrough a magnetic field B=(0.85T)k. Determine the components ofthe electron's velocity.
Vx=?
Vy=?