A 220 volt input is supplied to a transformer. The output circuit draws a current of 2.0 ampere at 440 volts. If the efficiency of the transformer is 80%, the current drawn by the primary windings of the transformer is

Question:

Options :

(a) 5.0 ampere
(b) 3.6 ampere
(c) 2.8 ampere
(d) 2.5 ampere

Answer :

(a) 5.0 ampere

Answer Steps :

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Related Questions

An electron of mass (m) having de-Broglie wavelength ‘λe’ and a proton of mass (m) having de-Broglie wavelength ‘λp’ are accelerated through the same potential difference. The ratio of ‘λe’ to ‘λp’ is: [MHT-CET 2023]

The magnetic moment produced in a substance of 10^-3 kg is 5 × 10^−7A−m2. If its density is 6 X 10^3 kg/m^3, then the intensity of magnetisation in A/m will be :

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