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                                    A rod of certain metal is 1 m long and 0.6 cm in diameter. It’s resistance is 3×10−3 Ω. A disc of the same metal is 1 mm thick and 2 cm in diameter, what is the resistance between it’s circular faces. | 
                            
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Answer» A rod of certain metal is 1 m long and 0.6 cm in diameter. It’s resistance is 3×10−3 Ω. A disc of the same metal is 1 mm thick and 2 cm in diameter, what is the resistance between it’s circular faces. | 
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