Question

(a) An electron moving with a velocity of 26 m/s enters a region A with a uniform electric field 13 V/m that is directed opposite to the direction of motion of the electron (so the electric force is in the direction of motion). The electron travels a distance 3nm before exiting the region A. The velocity of the electron when it exits this region is __ m/s Take the mass of the electron to be 9.1x10^(-31) kg and its charge to be 1.6x10^(-19) C. (b) The electron now enters a region B with uniform magnetic field 8 mT perpendicular to its direction of motion. The radius of the circular path the electron would follow in this region is nm.

          (a)

An electron moving with a velocity of 26 m/s enters a region A with a uniform electric field 13 V/m that is directed opposite to the direction of motion of the electron (so the electric force is in the direction of motion). The electron travels a distance 3nm before exiting the region A. The velocity of the electron when it exits this region is
________ m/s
Take the mass of the electron to be 9.1x10^(-31) kg and its charge to be 1.6x10^(-19) C.

(b)

The electron now enters a region B with uniform magnetic field 8 mT perpendicular to its direction of motion. The radius of the circular path the electron would follow in this region is ______ nm.

(a)

An electron moving with a velocity of 26 m/s enters a region A with a uniform electric field 13 V/m that is directed opposite to the direction of motion of the electron (so the electric force is in the direction of motion). The electron travels a distance 3nm before exiting the region A. The velocity of the electron when it exits this region is
m/s
Take the mass of the electron to be 9.1x10^(-31) kg and its charge to be 1.6x10^(-19) C.

(b)

The electron now enters a region B with uniform magnetic field 8 mT perpendicular to its direction of motion. The radius of the circular path the electron would follow in this region is nm.

Added by Jeffrey M.

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