07-01-2013, 06:18 PM
* To study the variations, in current flowing, in a circuit containing a LDR, because of a variation.
(a) in the power of the incandescent lamp, used to 'illuminate' the LDR. (keeping all the lamps at a fixed distance).
(b) in the distance of a incandescent lamp (of fixed power) used to 'illuminate' the LDR.