Navigate

An electric motor runs on DC source of emf 200 V and draws a current of 10 A.

An electric motor runs on DC source of emf 200 V and draws a current of 10 A. If the efficiency be 40%, then the resistance of armature is

Options

(a) 2Ω
(b) 8Ω
(c) 12Ω
(d) 16Ω

Correct Answer:

12Ω

Explanation:

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

ML2012
admin:

Related Questions

  1. The speed of light in media M₁ and M₂ are 1.5×10⁸ ms⁻¹ and 2×10⁸ ms⁻¹ respectively.
  2. A satellite in a circular orbit of radius R has a period of 4 hours. Another satellite
  3. A planet in a distinct solar system is 10 times more massive than the earth
  4. A bar magnet of magnetic moment M is placed at right angles to a magnetic
  5. A coil of 40 henry inductance is connected in series with a resistance of 8 ohm