Potential Difference becomes greater than Electromotive Force: Conditions
Experiment: Under what condition the potential difference of a cell becomes greater than the electromotive force of the cell? Normally, the electromotive force of a…
Physics
Relation between Internal Resistance and Electromotive Force of a Cell
Relation between Internal resistance and Electromotive force of a cell Each energy source, viz, cell or generator, has internal resistance. The amount of resistance which…
Electromotive Force of the Cell
Electromotive force of the cell Due to the presence of positive and negative charges in the two terminals of the cell, a potential difference appears…
Internal Resistance of a Cell
The internal resistance of a cell For the operation of our daily household appliances, for example, radio, television, refrigerator, cassette player, torchlight etc. we need…
Volt Definition
Volt Definition: The amount of work done expressed in joule in bringing 1 coulomb of charge, starting from any point of an electric circuit and…
Experiment: determine the Mechanical Equivalent of Heat
Experiment: to determine the mechanical equivalent of heat, J There are two electrical methods for the determination of mechanical equivalent of heat, viz – (i)…
Electromotive Force
Electromotive force is a difference in potential that tends to give rise to an electric current. Energy is converted from one form to another in…
Joule’s laws for the Generation of Heat
Joule’s laws for the Generation of Heat In 1841, the famous English scientist J. P. Joule from the experimental results stated three laws relating to…
Effect of Temperature on resistance
Effect of Temperature on resistance If you look at the coil of a heater you will see that as soon as current flows through the…
Gauss’s Law to determine Electric Field due to two Charged Parallel Sheets
Electric field due to two charged parallel sheets: Consider a thin plane infinite sheet having positive charge density σ. In order to find the electric…
Load More