Question

two conducting wires of same material and if equal lengths resistance and resistivity having ratio 1:2 there diameter ratio will be a. 1:2 b. 1:4 c. 4:1 d. 1:√2

Answer 1

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Heat produced in the circuit is inversely proportional to the resistance R.
Let RS be the equivalent resistances of the wires if connected in series and RP be the equivalent resistances of the wires if connected in parallel 
Then RS =R+R=2R
And1/ RP = 1/R +1/R

1/ RP = 2/R

Or RP =R/2
Now the ratio of heat produced is given by 


= 1/4

HOPE IT HELPS U ❤❤

Answer 2

Bro answer is 1/root 2.

Procedure in attachment

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