\(2.2\, kW\) આઉટપુટ પાવર આપતા ટ્રાન્સફોર્મરના પ્રાથમિક ગૂચળામાં \(300\) આંટા અને દ્વિતીયક ગુચળામાં \(150\) આંટા છે.દ્વિતીયક ગુચળામાં પ્રવાહનું મૂલ્ય \(10\, A\) હોય તો પ્રાથમિક ગુચળા માટેનો ઈનપુટ વૉલ્ટેજ અને પ્રવાહ કેટલા હશે?

A \(440\, V\) અને \(5\, A\)
B \(440\, V\) અને \(20\, A\)
C \(220\, V\) અને \(20\, A\)
D \(220\, V\) અને \(10\, A\)

Verified Solution

Answer & Solution

Correct Answer

(A) \(440\, V\) અને \(5\, A\)

Step-by-step Solution

Detailed explanation

Given \(\mathrm{N}_{\mathrm{P}}=300, \mathrm{N}_{\mathrm{s}}=150, \mathrm{P}_{0}=2200 \,\mathrm{W}\) \(\mathrm{l}_{\mathrm{s}}=10\, \mathrm{A}\) \(\mathrm{P}_{0}=\mathrm{V}_{0} \mathrm{l}_{0} \) \(\Rightarrow 2200=\mathrm{V}_{0} \times 10 \)…

Apply the relevant identity from the chapter and substitute the values established in the previous step, keeping the original constraint in view.

Use the simplified expression to isolate the unknown, then plug the result back into the question setup to confirm the working is internally consistent.

Cross-check against a boundary or limiting case. Both the dimensional balance and the qualitative behaviour at the extreme should agree with the candidate answer.

Combine the steps above to identify the correct option. The remaining choices each fail at least one of the consistency, dimensional, or boundary checks.

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