Two wires have lengths, diameters and specific resistances all in the ratio of 1 : 2. The resistance of the first wire is 
. Resistance of the second wire in ohm will be
a)
5
b)
10
c)
20
d)
Infinite
Two wires have lengths, diameters and specific resistances all in the ratio of 1 : 2. The resistance of the first wire is . Resistance of the second wire in ohm will be
a)
5
b)
10
c)
20
d)
Infinite
Question ID - 150970 | SaraNextGen Top Answer
Two wires have lengths, diameters and specific resistances all in the ratio of 1 : 2. The resistance of the first wire is . Resistance of the second wire in ohm will be
a)
5
b)
10
c)
20
d)
Infinite
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Two wires have lengths, diameters and specific resistances all in the ratio of 1 : 2. The resistance of the first wire is |
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|
a) |
5 |
b) |
10 |
c) |
20 |
d) |
Infinite |
1 Answer
127 votes
Answer Key / Explanation : (b) -
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(b) Give that,
We know that, the resistance of the wire
So, the resistance of first wire is
and the resistance of the second wire is
On dividing Eq. (ii) by Eq (i)
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127 votes
Answer Link
127