Test SeriesFree PYQsExamsPricing

MHT CET Physics question

PhysicsAlternating CurrentMHT CET

A step down transformer is used to reduce 220 V supply to 11 V. The primary draws 5A of current while secondary 90A.the efficiency of transformer is:

Answer: (D)

Solution

Efficiency \dfrac{11×90}{220×5}$×100 =

See the full step-by-step solution

Create a free account to read the complete working, and practise questions like this in a timed test.

Create a free account

Question ID VK-081628