Navigate

The primary of a transformer when connected to a dc battery of 10 volt draws a current

The primary of a transformer when connected to a dc battery of 10 volt draws a current of 1mA. The number of turns of the primary and secondary windings are 50 and 100 respectively. The voltage in the secondary and the current drawn by the circuit in the secondary are respectively

Options

(a) 20 V and 0.5 mA
(b) 20 V and 2.0 mA
(c) 10 V and 0.5 mA
(d) zero and therefore no current

Correct Answer:

zero and therefore no current

Explanation:

A transformer is essentially an AC device. DC sources so no mutual induction between coils E₂ = 0 and I₂ = 0

NEET2013K
admin:

Related Questions

  1. λ₁ and λ₂ are used to illuminate the slits. β₁ and β₂ are the corresponding fringe
  2. Thomson coefficient of a conductor is 10 µV/K. Its two ends are kept
  3. The frequency of a light wave in a material is 2 x 10¹⁴ Hz and wavelength is 5000Å.
  4. A black body at a temperature of 227⁰C radiates heat at a rate of 20 cal m⁻²s⁻¹.
  5. The operation of a nuclear reactor is said to be critical, if the multiplication