Answer :


Given-
Kinetic energy of an electron = 100 eV



Radius of the circle = 10 cm


We now kinetic energy is given by



Where


From question , we can confer that




Here,
m is the mass of an electron


v is the velocity of an electron.


We know that 1 eV = 1.6 × 10−19 J


Thus,






Now, radius r -








Therefore, magnetic field applied is 3.4 × 10−4 T



Number of revolutions per second of the electron is nothing but the frequency given by ,




From (1)











Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
caricature
view all courses
RELATED QUESTIONS :

A rectangular coiHC Verma - Concepts of Physics Part 2

A circular coil oHC Verma - Concepts of Physics Part 2

A rectangular looHC Verma - Concepts of Physics Part 2

A circular loop cHC Verma - Concepts of Physics Part 2

Fe+ionHC Verma - Concepts of Physics Part 2

Let <span lang="EHC Verma - Concepts of Physics Part 2

Consider three quHC Verma - Concepts of Physics Part 2

A narrow beam of HC Verma - Concepts of Physics Part 2

A particle havingHC Verma - Concepts of Physics Part 2