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AIIMS 2008
Exam
AIIMS
Year
2008
Subject
Physics
Chapter
Current Electricity

AIIMS 2008 · Physics · Current Electricity

Two heater wires, made of the same material and having the same...

Two heater wires, made of the same material and having the same length and the same radius, are first connected in series and then in parallel to a constant potential difference. If the rates of heat produced in the two cases are HsH_s and HpH_p respectively, then Hs/HpH_s / H_p will beTwo heater wires, made of the same material and having the same length and the same radius, are first connected in

Options

  1. A1/21 / 2
  2. B2
  3. C1/41 / 4
  4. D4 .

Correct answer

C. 1/41 / 4

Step-by-step solution

When heater wires are connected in series, then equivalent resistance, Rs=R1+R2=2R(∵R1=R2)R_s=R_1+R_2=2 R \quad\left(\because R_1=R_2\right) Rate of heat produced, Hs=V2RsH_s=\frac{V^2}{R_{\mathrm{s}}} Two heater wires, made of the same material and having the same length and the same radius, are first connected in
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