Describe on Electric Power
If I is the current flowing through a conductor of resistance R in time t, then the quantity of charge flowing is, q = It.…
Physics
Explain Principle of Potentiometer
A potentiometer is a passive electronic component. It is an electric instrument that used to measure the EMF (electromotive force) of a given cell, the…
What is Potentiometer?
The Potentiometer is an instrument used for the measurement of potential difference (Figure). It consists of a ten metre long uniform wire of manganin or…
Comparison of emfs of two given Cells Using Potentiometer
A potentiometer is a mechanism used to evaluate the e.m.f. (electromotive force) of two cells, to calculate the internal resistance of a cell, and potential…
Comparison of emf and Potential Difference
Comparison of emf and potential difference: The difference of potentials between the two terminals of a cell in an open circuit is called the electromotive…
Describe Kirchoff’s Voltage Law
Kirchoff’s voltage law states that the algebraic sum of the products of resistance and current in each part of any closed circuit is equal to…
Kirchoff’s Current Law
Kirchoff’s current law states that the algebraic sum of the currents meeting at any junction in a circuit is zero. The convention is that, the…
Determination of Internal Resistance of a Cell Using Voltmeter
The potentiometer is a device used to measure the internal resistance of a cell and is used to compare the e.m.f. of two cells and…
Define and Describe on Carbon Resistors
The wire wound resistors are expensive and huge in size. Hence, carbon resistors are used. Carbon resistor consists of a ceramic core, on which a…
What is Internal Resistance of a Cell?
Internal resistance typically means the electrical resistance inside batteries and power supplies that can limit the potential difference that can be supplied to an external…
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