A proton has a mass $1.67 \times 10^{-27} \,kg$ and charge $+1.6 \times 10^{-19} \,C$. If the proton is accelerated through a potential difference of million volts, then the kinetic energy is ......... $J$
Easy
Download our app for free and get started
(b)
$\left(1.6 \times 10^{-19}\right)\left(10^6\right)=\frac{1}{2}\left(1.67 \times 10^{-27}\right) v^2$
$1.6 \times 10^{-13}=\frac{1.67}{2} \times 10^{-27} v^2= KE$
$KE =1.6 \times 10^{-13} \,J$
Download our appand get started for free
Experience the future of education. Simply download our apps or reach out to us for more information. Let's shape the future of learning together!No signup needed.*
Similar Questions
- 1A charged capacitor is allowed to discharge through a resistance $2\,\Omega $ by closing the switch $S $ at the instant $t = 0$. At time $t = ln$ $2$ $\mu s$, the reading of the ammeter falls half of its initial value. The resistance of the ammeter equal toView Solution
- 2Three identical small electric dipoles are arranged parallel to each other at equal separation a as shown in the figure. Their total interaction energy is $U$. Now one of the end dipole is gradually reversed, how much work is done by the electric forces.View Solution
- 3View SolutionThe combined capacity of the parallel combination of two capacitors is four times their combined capacity when connected in series. This means that
- 4Three identical metal plates with large surface areas are kept parallel to each other as shown in figure. The left most plates is given a charge $Q$ and the right most plate $C$ is given a charge $-2Q.$ The middle plate $B$ is neutral. Then the charge appearing on the outer surface $S$ of the plate $C$ is :-View Solution
- 5In the circuit shown in the figure, $C = 6\,\mu F$. The charge stored in the capacitor of capacity $C$ is..........$\mu C$View Solution
- 6Find the equivalent capacitance across $A$ and $B$......$\mu F$View Solution
- 7A parallel plate condenser is connected with the terminals of a battery. The distance between the plates is $6\,mm$. If a glass plate (dielectric constant $K = 9$) of $4.5\,mm$ is introduced between them, then the capacity will become.......$times$View Solution
- 8A parallel plate air capacitor is charged to a potential difference of $V$. After disconnecting the battery, distance between the plates of the capacitor is increased using an insulating handle. As a result, the potential difference between the platesView Solution
- 9The equivalent capacitance between points $A$ and $B$ of the circuit shown will beView Solution
- 10The four identical capacitors in the circuit shown below are initially uncharged. The switch is then thrown first to position $A$, and then to position $B$. After this is done:View Solution
Note: $V_{1,2,3,4}$ are the potential differences across $C_{1,2,3,4}$ and $Q_{1,2,3,4}$ are the final charges stored in $C_{1,2,3,4}$ respectively.
