Matthew has a Master of Arts degree in Physics Education. He has taught high school chemistry and physics for 14 years. View bio Understand what the electromotive force is and how to calculate an EMF. Explore Gibbs free energy, and connect Gibbs free energy and the electromotive force. ...
V= voltage, electric potential differenceΔ VorE= electromotive force (emf = voltage). Enter any two known values and press "calculate" to solve for the two others. Please, enter only two values. Voltage or voltsEorVvolts V Amperage or currentIamperes, amps A ...
The magicV I Rtriangle can be used to calculate all formulations of ohm's law. Use a finger to hide the value to be calculated. The other two values then show how to do the calculation. Voltage drop calculations - DC / single phase calculation ...
When we repeatedly draw current across a battery, its internal resistance rises. The internal resistance of a new battery or cell is low. The energy that moves electric charge through a circuit is known as emf. It comes from a battery or a cell. As a result, emf is measured in volts (...
Wheatstone bridge is used to calculate the unknown resistance precisely. It consists of four resistors that are connected in a diamond shape with the DC supply source connected across the top and bottom points (C and D in the circuit) of the diamond and the output is taken across the other...
Calculate the emf from the circuit below. How can the formula for power (power = work done/time taken) be explained? What is the resistance of a circuit with a power source of 240 V and 3.8 mA? Is AC better than DC? Calculate the voltage required to move 2.6 mA through a 500 K ...
A is the cross-sectional area in m2 I refer to the flowing electric current through the conductor in Amperes (A) Flow of Current Current Density Solved Examples Ques: Calculate the current density when 40 amperes of current is flowing through the battery in a given area of 10 m2. ...