A rectangular carbon block has dimensions 1.0cm x 1.0cm x 50cm :

(i) What is the resistance measured between the two square ends?

(ii) Between two opposing rectangular faces? The resistvity of carbon at 20°C is 3.5x10^-5 Ohm-m.

Subject Physics
NU Year Set: 3.(d) Marks: 4 Year: 2012
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