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[" Two wires each of radius of cross sec...

[" Two wires each of radius of cross section "r" but of different materials are connected together end "],[" series).If the densitles of charge carrles in the two wires are in the ratio "1:4," the drift velocity of el "],[" the two wires will be in the ratio "],[[" (A) "1:2," (B) "2:1," (C) "4:1," (D) "1:4]]

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Two wires each of radius of cross section r but of different materials are connected together end to end (in series). If the densities of charge carries in the two wires are in the ratio 1:4 , the drift velocity of electrons in the two wires will be in the ratio:

Two wires each of radius of cross section r but of different materials are connected together end to end (in series). If the densities of charge carries in the two wires are in the ratio 1:4 , the drift velocity of electrons in the two wires will be in the ratio:

Two wires each of radius of cross section r but of different materials are connected together end to end (in series). If the densities of charge charge carries in the two wires are in the ratio 1:4 , the drift velocity of electrons in the two wires will be in the ratio:

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Two different wires X and Y of same diameter but different materials are joined in series across a battery. If the number density of electrons in X is twice that in Y, find the ratio of drift velocity of electrons in the two wires .

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