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: 9alvano,, conn . Meter,, ecting Wires ete, cell, plug key, Teversing key, high resistance box., . 8 |, Formula: = (i) S= T., : ,, =c, : Current through galvanometer, = Current Sensitivity, @= deflection in galvanometer, Circuit diagram:, oe, —, E, I,, L {e\—, + t 8} ae, = <—e, E: Daniel Cell, 4 R: Resistance box, K: key, K, : four way key ., ra —, > A, WL, L__ ;, , , , , , , , _ Procedure: fue, 4 . . Fr i, oe ee osptanee ? alton aii close key K and key K, so that current flows through, 2. Select high resistance from bo:, , i in the galvanometer., ote the deflection 6 in nan saxiiventie, SR for 3 different values of * R' so that successive readings ‘ene, 3. Repeat the procedure entire scale of galvanometer. Note down current I, in eac :, ivisions om ey i ind its mean value., 3 to 4 division t sensitivity $ for each observation. Find its mean Me idviom, alte inst I. Hence determine the current sensitivity, Plot a graph of 6 against 'c:, , “, , _ Observations:, ~ (1) Resistance of alee ai, ~Q)EMF. of cell (E)= 7", , ter (G) = 494..Q., , canned witn Camséann