COMEDK · Physics · 23. Alternating Current
A transformer of \(100 \%\) efficiency has 200 turns in the primary and 40000 turns in the secondary. It is connected to a \(220 \mathrm{~V}\) main supply and secondary feeds to a \(100 \mathrm{~K} \Omega\) resistance. The potential difference per turn is
- A 18 V
- B 11 V
- C 1.1 V
- D 25 V
Answer & Solution
Correct Answer
(C) 1.1 V
Step-by-step Solution
Detailed explanation
The transformer equation relates the primary voltage \(V_p\), secondary voltage \(V_s\), number of primary turns \(N_p\), and number of secondary turns \(N_s\) as \(\dfrac{V_p}{N_p} = \dfrac{V_s}{N_s}\). The potential difference per turn is defined as the ratio of the voltage…
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