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. An oscillator circuit consists of an inductance of 0. mH and a capacitor of 20 μF.
  2. Complete the reaction: ₀n¹+ ₉₂U²³⁵→₅₆Ba¹⁴⁴+……..+3n
  3. A monoatomic gas is suddenly compressed to (1/8)th of its initial volume adiabatically.
  4. A concave mirror of focal length f₁ is placed at a distance d from a convex lens
  5. The drive shaft of an automobile rotates at 3600 rpm and transmits 80 HP