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Determination of resistance of Galvanometer by half deflection method.
Apparatus: A low resistance galvanometer, a cell, two resistance box, two one way plug keys, connecting wires and sand paper. Theory: Set the circuit according
Study of the variation in magnetic field strength along the axis of a current crying circular coil.
Apparatus: Stewart and gee’s type galvanometer, batter, ammeter, rheostat, one way plug key, reversing Ley connecting wires and sand paper, Stewart and Gee’s tangent galvanometer
Study of the relation between current passing through a tungsten filament and potential across it.
Apparatus: Battery (12 volts), tungsten lamp (12 volts, 25 watt), rheostat, voltmeter, ammeter, key, connecting wires and sand paper. Theory According to Ohm’s law, when
Determine the emf of a cell using a potentiometer
Apparatus: Potentiometer, battery (3 volts), leclanche cell, galvanometer, rheostat, one way key, two way key, voltmeter, connecting wires and sand paper Theory When k1of the
Study of the variation in resistance of thermistor with thermometer.
Apparatus: Thermistor, beak, tripod stand, boiling tube containing paraffin, spirit lamp, thermometer, voltmeter, ammeter, power supply and connect wires. Theory: Thermistor is a semiconductor whose
Study of variation of photo electric current with intensity of light.
Apparatus: Photocell, battery, key, micro ammeter or galvanometer, electric lamp, ruler and conne wires. Theory: In photocell an electric current is produced by the photo
