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physics coursework INVESTIGATE ONE OF THE FACTORS AFFECTING THE RESISTANCE OF A WIRE
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INTRODUCTION This piece of physics coursework is an investigation, which will try to find out the factors affecting the resistance of a wire and reasons behind these. Mechanism of conduction: - In metals there is conduction most metals follow ohmic-law but in plastics there is no conduction. If a metal is good conductor of heat then it should also be a good conductor of electricity and visa-versa. In an atom of a metal there are bound electrons, nucleus and free electrons; a plastics atom has no free electrons, while metals have free electrons. The bound... 
count 0.01amps
count 0.01amps
2.d.p R=V/I
Resistance
Ohms
R=resistance
V= voltage p.d
I= current
2.d.p Voltage
Volts
v+- 0.01v
2.d.p Current I
Amperes amps Least count 0.01amps
2.d.p R=V/I
Resistance
Ohms
R=resistance
V= voltage p.d
I= current
2.d.p
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