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Current Electricity question

2013 · Q124
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Current Electricity question

2013 · Q124

NEETPhysicsCurrent ElectricityMCQ+4 / −1
Two rods are joined end to end, as shown. Both have a cross-sectional area of 0.01 cm2. Each is 1 meter long. One rod is of copper with a resistivity of 1.7 ×\times× 10−-−6 ohm-centimeter, the other is of iron with a resistivity of 10−-−5 ohm-centimeter.
NEET 2013 (Karnataka) Physics - Current Electricity Question 92 English
How much voltage is required to produce a current of 1 ampere in the rods?
  1. A
    0.00145 V
  2. B
    0.0145 V
  3. C
    1.7 ×\times× 10−-−6 V
  4. D
    0.117 V
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