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

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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[7,657] WORDS