Copper and iron wire of same length and diameter are in series and connected acress a battery .The resistance of copper is about one sixth of that of iron If `E_(1)` and `E_(2)` are the electron fields of in the copper and iron wires respectively then which of the following is correct ?

Which of the following are contains copper and iron ?

Two copper wires of the same length have got different diameters a. which wire has greater resistance? b. greater specific resistance?

A copper wire and an iron wire, each having an area of cross-section A and lengths L_(1) and L_(2) are joined end to end. The copper end is maintained at a potential V_(1) and the iron end at a lower potential V_(2) . If sigma_(1) and sigma_(2) are the conductivities of copper and iron respectively, then the potential of the junction will be

A copper wire and an iron wire, each having an area of cross-section A and lengths L_(1) and L_(2) are joined end to end. The copper end is maintained at a potential V_(1) and the iron end at a lower potential V_(2) . If sigma_(1) and sigma_(2) are the conductivities of copper and iron respectively, then the potential of the junction will be

Electric field inside a copper wire of length 10 m , resistance 2 ohm connected to a 10 volt battery is

Electric field inside a copper wire of length 10 meter, resistance 2 ohm connected to a 10 volt battery is (in SI units)

Electric field inside a copper wire of length 10 meter, resistance 2 ohm connected to a 10 volt battery is (in SI units)

Which one of the following contains copper besides iron ?