Dimensions of a block are 
. If specific resistance of its material is 
, then the resistance between the opposite rectangular faces is
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
B
Length l = 1 cm 
Area of cross-section A = 1 cm × × 100 cm
= 100 cm 2 = 10 –2 m 2 Resistance R = 3 × × 10
–7 
= 3 × × 10 –7 Ω Ω
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