During short circuit test iron losses are negligible because

The correct answer is: D. full-load current is not supplied to the transformer.

During a short circuit test, a small voltage is applied to the primary winding of the transformer, causing a large current to flow through the secondary winding. This large current causes the iron core of the transformer to heat up, but because the current is not high enough to cause saturation, the iron losses are negligible.

Option A is incorrect because the current on the secondary side is actually quite high during a short circuit test.

Option B is incorrect because the voltage on the