Electro Magnetic Induction And Alternating Currents Question 259
Question: The primary winding of transformer has 500 turns whereas its secondary has 5000 turns. The primary is connected to an ac supply of 20 V, 50 Hz. The secondary will have an output of [CBSE PMT 1997; AIIMS 1999]
Options:
A) 200 V, 50 Hz
B) 2 V, 50 Hz
C) 200 V, 500 Hz
D) 2 V, 5 Hz
Show Answer
Answer:
Correct Answer: A
Solution:
$ \frac{V_{s}}{V_{p}}=\frac{N_{s}}{N_{p}}\Rightarrow \frac{V_{s}}{20}=\frac{5000}{500} $
$ \Rightarrow V_{s}=200\ V $ Frequency remains unchanged.
