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The specific resistance of manganin is $50 \times {10^{ - 8}}\,ohm \times m$. The resistance of a cube of length $50\,cm$ will be
  • A${10^{ - 6}}\,ohm$
  • B$2.5 \times {10^{ - 5}}\,ohm$
  • C${10^{ - 8}}\,ohm$
  • D$5 \times {10^{ - 4}}\,ohm$
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