Help me out to get a circuit diagram of a metre bridge for my project in physics on "Temperature coefficient"?

Question

Please help me out and do something

Answer 1

See the following links for circuit diagrams and explanations:
http://www.ecsel.psu.edu/~jcs314/Design%20Project/page2.html
http://www.seas.upenn.edu/courses/belab/ReferenceFiles/Electronics/whetstone_bridge.pdf
http://en.wikipedia.org/wiki/Wheatstone_bridge
http://www.play-hookey.com/dc_theory/wheatstone_bridge.html