tech master 117
Member
Yesterday i was doing an experiment and believe me it worked real good,
what i did:
1)took a graphite pencil and drew a deep line on a paper sometimes straight or curved
2)then took an open circuit of a LED and put the the two open terminals at both the ends of the pencil line
3)to my wonder the LED started glowing but dim
4)as i moved one terminal through the pencil line towards the other the glow became stronger
MY CONCLUSION:
1)pencil lines when drawn uniformly on a paper conduct electricity it even worked when i drew the lines on a wall
2)in my opinion pencil lines can be used as very efficient and cost effective rheostats(variable resistances).
ANY SUGGESTIONS PLEASE..........
what i did:
1)took a graphite pencil and drew a deep line on a paper sometimes straight or curved
2)then took an open circuit of a LED and put the the two open terminals at both the ends of the pencil line
3)to my wonder the LED started glowing but dim
4)as i moved one terminal through the pencil line towards the other the glow became stronger
MY CONCLUSION:
1)pencil lines when drawn uniformly on a paper conduct electricity it even worked when i drew the lines on a wall
2)in my opinion pencil lines can be used as very efficient and cost effective rheostats(variable resistances).
ANY SUGGESTIONS PLEASE..........