Subject :NSO Class : Class 6
The electric circuit shown here was set up by Ramesh. He placed a 6 cm copper bar, X, in the electric circuit. He closed the switch and observed the brightness of the bulb. Ramesh then repeated the experiment, each time using copper bars of different lengths: 8 cm, 12 cm, 15 cm. The aim of his experiment was
ATo find out if the number of batteries affect the brightness of the bulb
BTo find out if the different positions of the copper bar in the electric circuit will affect the brightness of the bulb
CTo find out if the length of the bar affects the brightness of the bulb
DTo find out if the material of the bar affects the brightness of the bulb.
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