Question

If 76 eV energy is required to move a proton between
two points, then the potential difference between them
will be
38 V
152 V
76 V
76 x 10-19 v​

Answer 1

Answer:

Answer is 76V

Explanation:

V=W/Q

W=76ev

where, e=1.6×10^-19

And Q is charge on proton =1.6×10^-19

V=76×1.6×10^-19/1.6×10^-19

V=76V

Answer 2

The potential difference is 76 V

Explanation:

Given:

A proton is moved between two points with the requirement of 76 eV of energy

To find out:

The potential difference between the points

Solution:

We know that

Work done  = Energy spent

Thus, the work done in moving the proton between the two given points

W = 76 eV

The charge on the proton is equal to that of charge on electron, only that it is positive

Thus, charge on proton = 1e

We know that if a charge q is moved between two points and a work W is done in this process, then the potential difference between the two points is given by

$V=\frac{W}{q}$

$\implies V=\frac{76 \text{ eV}}{\text{e}}$

$\implies V=76$ V

Hope this answer is helpful.