Navigate

A step down transformer is used on a 1000 V line to deliver 20 A at 120 V

A step down transformer is used on a 1000 V line to deliver 20 A at 120 V at the secondary coil. If the efficiency of the transformer is 80%, the current drawn from the line is

Options

(a) 3A
(b) 30 A
(c) 0.3 A
(d) 2.4 A

Correct Answer:

3A

Explanation:

No explanation available. Be the first to write the explanation for this question by commenting below.

AIIMS2012
admin:

Related Questions

  1. Two discs of moment of inertia I₁ and I₂ and angular speeds ?￢ﾂﾁ and ?￢ﾂﾂ are rotating
  2. A string in musical instrument is 50 cm long and its fundamental frequency is 800 Hz.
  3. A wire carrying current I has the shape as shown in adjoining figure. Linear parts
  4. An air bubble in a glass slab with refractive index 1.5 (near normal incidence)
  5. Two waves represented by following equations are travelling in same medium