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 $
