AP EAMCET · PHYSICS · Alternating Current
Find the current through the primary coil \((P)\) of the transformer shown below.
- A \(0.08 \mathrm{~A}\)
- B \(0.04 \mathrm{~A}\)
- C \(0.02 \mathrm{~A}\)
- D \(0.01 \mathrm{~A}\)
Answer & Solution
Correct Answer
(C) \(0.02 \mathrm{~A}\)
Step-by-step Solution
Detailed explanation
The given situation is shown in the figure For the given transformer, \(\begin{aligned} & V_p=230 \mathrm{~V} \\ & V_S=23 \mathrm{~V} \\ & R_S=115 \Omega \end{aligned}\) Currrent in secondary coil, \(I_S=\frac{V_S}{R_S}=\frac{23}{115}=0.2 \mathrm{~A}\) We know that, in a…
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