The Electric field is zero at a distance 2.492 cm from the origin.
Let A be point where the charge
C is placed which is the origin.
Let B be the point where the charge
C is placed. Given that B is at a distance 1 cm from the origin.
Both the charges are positive. But charge at origin is greater than that of B. So we can conclude that the point on the x-axis where the electric field = 0 is after B on x - axis.
i.e., at distance 'x' from B.
Using Coulomb's law,
,
= ![15\times 10^-6 C](https://tex.z-dn.net/?f=15%5Ctimes%2010%5E-6%20C)
![Q_B=9\times10^-6C](https://tex.z-dn.net/?f=Q_B%3D9%5Ctimes10%5E-6C)
![d_A = 1+x cm](https://tex.z-dn.net/?f=d_A%20%3D%201%2Bx%20cm)
![d_B=x cm](https://tex.z-dn.net/?f=d_B%3Dx%20cm)
k is the Coulomb's law constant.
On substituting the values into the above equation, we get,
![\frac{(15\times10^-6)^2}{(1+x)^2} =\frac{(9\times10^-6)^2}{x^2}](https://tex.z-dn.net/?f=%5Cfrac%7B%2815%5Ctimes10%5E-6%29%5E2%7D%7B%281%2Bx%29%5E2%7D%20%3D%5Cfrac%7B%289%5Ctimes10%5E-6%29%5E2%7D%7Bx%5E2%7D)
Taking square roots on both sides and simplifying and solving for x, we get,
1.67x = 1+x
Therefore, x = 1.492 cm
Hence the electric field is zero at a distance 1+1.492 = 2.492 cm from the origin.
Learn more about Electric fields and Coulomb's Law at brainly.com/question/506926
#SPJ4
<span>In Ionic type of bonding, electrons are lost (more
protons than electrons and positive charge) or gained (more electrons than
protons, still a negative charge) by atoms, and the atoms are held together by
electrical attraction in the process. Covalent bondings are the sharing of electrons
as well as partial bondings. Covalent bondings’ electrons have the same charges
thus, there is no gaining or losing electrons in the process of sharing. Strong
bondings are applicable only to Hydrogen (H) atoms. </span>
Energy stored in a capacitor is Electric Potential Energy. Capacitor is device used for storing energy. The work done to charge is a capacitor is stored in it in the form of Electrical potential energy. Electrical potential energy is defined as capacity to do work due to the position change. For example, we know fans have capacitor installed in it. When we turn off the fan, it continue moving using the electrical energy stored in the capacitor.