Electromagnetic Induction & AC · JEE Main previous year questions

2002 2 questions

1. Q1282002 · 27 Apr 2002 · Shift 1

   In a transformer, number of turns in the primary coil are $140$ and that in the secondary coil are $280$. If current in primary coil is $4\mathrm{A}$, then that in the secondary coil is

   1. A.$4\mathrm{A}$
   2. B.$2\mathrm{A}$
   3. C.$6\mathrm{A}$
   4. D.$10\mathrm{A}$
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   Answer: B

2. Q1352002 · 27 Apr 2002 · Shift 1
   
   1. A.$3.66\mathrm{H}$
   2. B.$9\mathrm{H}$
   3. C.$0.66\mathrm{H}$
   4. D.$1\mathrm{H}$
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   Answer: D