Properties of an electric transformer

Electricity and Magnetism Level 2

The above is a schematic diagram of an electric transformer, where the primary AC voltage is \(220\text{ V}\) and the secondary coil is connected with an electric heating instrument. The secondary voltage and current intensity are \(110\text{ V}\) and \(8\text{ A},\) respectively. Which of the following statements is correct?

There is no energy loss in this electric transformer.

\(a)\) The current intensity flowing in the primary winding is \(4\text{ A}.\)
\(b)\) The number of turns in the secondary winding is twice as many as that in the primary winding.
\(c)\) The primary coil always transfers \(880\text{ W}\) of electric power to the secondary coil without reference to any heating instrument.


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