A proton is accelerated through 50,000, V . Its energy will increase by

English

Gujarati

Hindi

2. Electric Potential and Capacitance

easy

A proton is accelerated through $50,000\, V$. Its energy will increase by

A

$5000 \,eV$

B

$8 \times {10^{ - 15}}\,J$

C

$5000 \,J$

D

$50,000\, J$

Solution

(b) Kinetic energy $K = Q.V$ $==>$ $K = (+e) (50000 \,V)$
$= 50000\, eV = 50000 × 1.6 × 10^{-19} \,J = 8 × 10^{-15}\, J$

Standard 12

Physics

Share

Similar Questions

Why gravitational forces or spring forces are conservative forces ?

easy

A solid sphere of radius $R$ carries a charge $(Q+q)$ distributed uniformly over its volume. A very small point like piece of it of mass $m$ gets detached from the bottom of the sphere and falls down vertically under gravity. This piece carries charge $q.$ If it acquires a speed $v$ when it has fallen through a vertical height $y$ (see figure), then :

(assume the remaining portion to be spherical).

hard

(JEE MAIN-2020)

Obtain equation of electric energy of a single charge.

medium

A negative point charge placed at the point $A$ is

hard

The work done in carrying a charge of $5\,\mu \,C$ from a point $A$ to a point $B$ in an electric field is $10\,mJ$. The potential difference $({V_B} – {V_A})$ is then

easy