Question

What is the number of primary turns in a 200/1000 V transformer if the emf per turn is 5V? A) 5 B) 10 C) 20 D) 40​

Answer 1

Answer:

;b) I think so

hope it's right

Answer 2

Answer:

Option D is the right choice i.e. 40 turns.

Explanation:

We are given with a transformer whose EMF per turn is 5V.

Given,

Primary Induced EMF (E₁)=200V

EMF induced per turn=5V

So the count of primary turns in the given transformer can be evaluated as

$N_{1} =\frac{Primary\ Induced\ EMF}{EMF\ per\ turn} \\N_{1} =\frac{200}{5}$

N₁=40V

Hence,  40 turns is the count of primary turns in the transformer.