SATHEE: Electro Magnetic Induction And Alternating Currents Question 269

Electro Magnetic Induction And Alternating Currents Question 269

Question: A transformer has 100 turns in the primary coil and carries 8 A current. If input power is one kilowatt, the number of turns required in the secondary coil to have 500V output will be [MP PET 2002]

Options:

A) 100

B) 200

C) 400

D) 300

Show Answer

Answer:

Correct Answer: C

Solution:

$P_{s} = V_{s} i_{s} \Rightarrow 1000 = V_{s} \times 8 \Rightarrow V_{s} = \frac{1000}{8}$ $\frac{V_{p}}{V_{s}} = \frac{N_{p}}{N_{s}} \Rightarrow \frac{(1000 / 8)}{500} = \frac{100}{N_{s}} \Rightarrow N_{s} = 400$

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Electro Magnetic Induction And Alternating Currents Question 269

Question: A transformer has 100 turns in the primary coil and carries 8 A current. If input power is one kilowatt, the number of turns required in the secondary coil to have 500V output will be [MP PET 2002]

Options:

Answer:

Solution:

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