Last Updated On 16-03-2023 - By Jeesha Sara
Two wires of same metal have the same length but their cross sections are in the retio 3:1. They are joined in series. The resistance of the thicker wire is 
. The total resistance of the combination is
a)
b)
c)
d)
Two wires of same metal have the same length but their cross sections are in the retio 3:1. They are joined in series. The resistance of the thicker wire is . The total resistance of the combination is
a)
b)
c)
d)
Question ID - 150321 :-
Two wires of same metal have the same length but their cross sections are in the retio 3:1. They are joined in series. The resistance of the thicker wire is . The total resistance of the combination is
a)
b)
c)
d)
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Two wires of same metal have the same length but their cross sections are in the retio 3:1. They are joined in series. The resistance of the thicker wire is |
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a) |
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b) |
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c) |
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d) |
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(c) For the same length and same material,
The resistance of thick wire, The resistance of thin wire
Total resistance |
Next Question :
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A copper wire of length |
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a) |
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b) |
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c) |
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d) |
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and radius 
is nickel plated till its final radius become 
but length remains 
. If the resistivity of nickel and copper be 
and 
respectively, the conductance of the nickelled wire is
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