A proton of mass m charge e is released from rest in a uniform electric field of strength E. The time taken by it to travel a distance d in the field is

Question

A proton of mass m charge e is released from rest in a uniform electric field of strength E. The time taken by it to travel a distance d in the field is (A) √(2de/mE) (B) √(2dm/Ee) (C) √(2dE/me) (D) √(2Ee/dm)

Tardigrade Admin · Accepted Answer

Correct answer is (b) √(2dm/Ee)

Q. A proton of mass m charge e is released from rest in a uniform electric field of strength E. The time taken by it to travel a distance d in the field is

$\frac{2 d e}{m E}$

$\frac{2 d m}{E e}$

$\frac{2 d E}{m e}$

$\frac{2 E e}{d m}$

Correct answer is (b) $\frac{2 d m}{E e}$

Q. A proton of mass m charge e is released from rest in a uniform electric field of strength E. The time taken by it to travel a distance d in the field is

mE2de​​

Ee2dm​​

me2dE​​

dm2Ee​​

Correct answer is (b) Ee2dm​​

$\frac{2 d e}{m E}$

$\frac{2 d m}{E e}$

$\frac{2 d E}{m e}$

$\frac{2 E e}{d m}$

Correct answer is (b) $\frac{2 d m}{E e}$