Physics
The diagram in the figure given alongside shows the core of a transformer and its input and output connections.
(a) Is this transformer a step up or step down?
(b) State the material used for the core and describe its structure.
Electro-Magnetism
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Answer
(a) As this transformer converts 220 V of inputs into 44 V of output so it is reducing the voltage. Hence, it is a step down transformer.
(b) The core is made from thin rectangular laminated sheets of soft iron of T and U shape, placed alternately one above the other and insulated from each other by a paint (or varnish) coating over them which forms a simple rectangular core.
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