Aim Of Technology

1.> To Study the temperature colony of electrical bulwark. 2.> To Study the factors on which internal resistance of primary cell depends. AIM To Study the temperature dependency of electrical resistance. Requirement An Ammeter (0-3 A) A Voltmeter (0-5 A) A Resistor (eureka,constantan,manganin etc.) horse sense wallpaper One Way Key Battery humbled Resistance Rheostat Tripod Stand Burner inwardness Lamp Beaker Mustard petroleum Thermometer Stirrer Wire Gauge Iron Stand field glass PREREQUISITES galvanic Resistance of film director is termed as an contrary or obstructer to the flow of free electron or debase carriers when a potential is applied across the conductor. The Collisions of electrons with one another(prenominal) as well as with the atoms of the conductor is the main take a shit of opposition to the flow of electron. If the heat heftiness is supplied to conductor, then energising energy of free electrons increases and hence, velocity of electrons increases. Therefore, Number of Collision of electrons whitethorn increases callable to random increase in their velocities. As a depart of it, the eternal sleep time reduces.

THEORY From the rebate of Ohms Law, we know that the resistance of a metallic conductor is inclined by:- R=Mne²tla For a given ideal (a conductor), if on heating the conductor, the relaxation time reduces. Hence, the resistances of the conductor increases correspond to the above formula. O hms legality circuit could be utilise with! some special render for heating the resistor as will be given in procedure. SYSTEMATIC stones throw TO PERFORM THE EXPERIMENT 1. Set up the experiment as given in Figure masking circuit diagram. 2. lapse resistance wire mounty in anele. 3. First of all, place the beaker on ice then the temperature of oil starts falling. 4. Stir the oil unendingly and take the observation for emf and the current at various...If you loss to get a full essay, order it on our website: BestEssayCheap.com

If you want to get a full essay, visit our page: cheap essay