Question

On what factors does the resistance of a conductor depend?
Will current flow more easily through a thick wire or a thin wire of the
same material, when connected to the same source? Why?
Let the resistance of an electrical component remains constant while
the potential difference across the two ends of the component decreases
to half of its former value. What change will occur in the current through
it?
Why are coils of electric toasters and electric irons made of an alloy
rather than a pure metal?
Use the data in Table 12.2 to answer the following -
(a) Which among iron and mercury is a better conductor?
(b) Which material is the best conductor?
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Answer 1

Answer:

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Answer 2

Answer:

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