The potential difference between any two points is then calculated by the expression: {eq}\displaystyle \Delta V=V_B-V_A=kq\left (\frac{1}{r_B}-\frac{1}{r_A}\right ) {/eq} Answer and Explanation:1 In this case, it does not matter that points a and b are not aligned because...
The movement of electrons creates a difference in potential energy between two points. We call this potential difference voltage. There are two types of electrical energy: AC and DC. The voltage obtained from a DC source is called DC voltage. DC voltage has a constant value. And it is denot...
In the presence of multiple charges, the electric potential at a point is the scalar sum of electric potential due to every individual charge. The expression of electric potential (V) at a point located at a distance r from the point charge q is...
To calculate the Ah of a battery, you need to know two things: the voltage (V) and the watt-hour (Wh) of your battery. The voltage is the electrical potential difference between the positive and negative terminals of your battery. The watt-hour is the amount of energy that your battery...
In semiconductors, the flow of current is due to electrons or holes. In an electrolyte, the flow of current is due to ions and In plasma—an ionized gas, the flow of current is due to ions and electrons. When an electrical potential difference is applied between two points in a conductiv...
A Galvanometer is a device designed to detect and measure small electric currents. On the other hand, a Voltmeter is specifically crafted to measure the electric potential difference between two points in a circuit. The essence of the Galvanometer is its sensitivity to low current values, while...
What Is a Volt? A volt measures the electrical potential difference or electromotive force. It measures how much energy each charging unit carries when moving between two points in a system. Mathematically, you can use this equation to calculate volts if you know the watts and amps of an appl...
Potential Energy Potential energy is the stored energy, waiting to be released. This can be found across almost all systems: chemical bonds, nuclear energy, electrical potential energy, and mechanical energy (like gravitational potential energy and elastic potential). ...
In electrical circuits, power is measured in volts (V), as well as in amperes (A). A volt is the unit of electric potential difference. Another way to explain volt is the force that sends electrons through an electrical circuit to establish an electric current that's measured in amperes....
What is a watt? A "watt" is a measure of power. One watt (W) is the rate at whichworkis done when one ampere (A) of current flows through an electricalpotential differenceof one volt (V). A watt can be expressed as...