Electro Magnetic Induction And Alternating Currents Question 243

Question: In a transformer 220 ac voltage is increased to 2200 volts. If the number of turns in the secondary are 2000, then the number of turns in the primary will be [MP PET/PMT 1988]

Options:

A) 200

B) 100

C) 50

D) 20

Show Answer

Answer:

Correct Answer: A

Solution:

$ \frac{V_{p}}{V_{s}}=\frac{N_{p}}{N_{s}}\Rightarrow N_{p}=( \frac{220}{2200} )\ 2000=200 $



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