Question Detail

PHY 102 Test Compilation PHY 102 27 Objective Question

Question

The force on an electron moving in a magnetic field of strength 0.25 T is 3.2x10-14 N. Calculate the speed of the electron:
Options
A 2.5 x 105 m/s
B 3.2 x 105 m/s
C 6.25 x 105 m/s
D 8.0 x 105 m/s
Correct Answer
Correct Answer

Option D is the correct answer.

Detailed Explanation

v=F/(eB)=(3.2e-14)/[(1.6e-19)(0.25)]=8.0x105 m/s.

Hint

v=F/(eB)=(3.2e-14)/[(1.6e-19)(0.25)]=8.0x105 m/s.

Question Info