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. A uranium nucleus ₉₂ U ²³⁸ emits an α-particle and a β-particle in succession.
  2. If n₁, n₂ and n₃ are the fundamental frequencies of three segments into which a string
  3. 1 a.m.u. is equivalent to
  4. The escape velocity from the earth is Ve. The escape velocity from a planet
  5. The cadmium rods are used in nuclear reactor to