Home
Class 12
PHYSICS
An electron and a proton moving with sam...

An electron and a proton moving with same speed enter the same magnetic field region at right angles to the direction of the field. For which of the two particles will the radius of the circular path be smaller?

Text Solution

Verified by Experts

When a charged particle enters in a magnetic field perpendicularly then it follows circular path and its radius is give as
`r = (mv)/(Bq) = (v)/(B(q//m))`
As v and B are same for both electron and proton.
So `r prop (1)/("q/m (specific charge ratio)")`
Charge on proton and electron is same but mass of proton is larger than mass of electron.
So (q/m) for proton is small than that of electron.
As a result, radius of circular path of electron will be smaller.
Promotional Banner

Topper's Solved these Questions

  • FORCE ON A CHARGE

    BETTER CHOICE PUBLICATION|Exercise LONG ANSWER TYPE QUESTIONS |5 Videos

  • FORCE ON A CHARGE

    BETTER CHOICE PUBLICATION|Exercise NUMERICAL PROBLEMS |14 Videos

  • FORCE ON A CHARGE

    BETTER CHOICE PUBLICATION|Exercise SHORT ANSWER TYPE QUESTIONS|3 Videos

  • ELECTROSTATIC POTENTIAL

    BETTER CHOICE PUBLICATION|Exercise NUMERICAL PROBLEMS (MOST EXPECTED QUESTIONS)|6 Videos

  • FORCE ON A CURRENT

    BETTER CHOICE PUBLICATION|Exercise NUMERICAL PROBLEMS|10 Videos

Similar Questions

Explore conceptually related problems

If electron and proton having same momenta enter normally to a magnetic field then

Two protons P and Q moving with the same speed enter magnetic field B_(1)andB_(2) respectively at right angles to the field directions. If B_(2) is greater than B_(1) for which of the protons P and Q the circular path in the magnetic field will have a smaller radius?

Electron and proton are moving with the same speed, which will have more wavelength?

An electric charge enters in electric field at right angles to the direction of electric field. What is the nature of the path followed?

An electric charge enters in electric field at right angles to the direction of electric field.What is the nature of the path followed ?

An electron and a proton both having same linear momentum are projected at right angles to a uniform magneic field. Then trajectory of