Current Electricity and Electrical InstrumentHard
Question
Two heating coils, one of fine wire and the other of thick wire made of same material and of same length are connected in series and then in parallel. which of the following statement is correct
Options
A.In series fine wire liberates more energy while in parallel thick wire liberates more energy
B.In series fine wire liberates less energy while in parallel thick wire librates more energy
C.In series thick wire librates more energy while in parallel it wire liberates more energy
D.In series thick wire librates more energy while in parallel it wire liberates more energy
Solution
R1 = 
As A1 < A2 so R1 > R2
In series H = I2Rt H ∝ R ; H1 > H2
In parallel H =
t H ∝ 
; H1 < H2
As A1 < A2 so R1 > R2 In series H = I2Rt H ∝ R ; H1 > H2
In parallel H =
t H ∝ ; H1 < H2Create a free account to view solution
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