# In a transformer, what is the phase difference b/w secondary induced voltage and current in secondary circuit for purely resistive load?

What is the phase difference between the induced emf in the secondary winding of a transformer and the current through the secondary circuit in the case where a pure resistance is connected across the secondary winding? Or are they in phase with each other?

I have work out this much so far - The secondary induced emf, say E2 is lagging the flux phi in the core by 90 degrees. The current I2, according to Lenz's law, should be in such a direction so as to oppose the cause producing it, i.e, the sinusoidally varying flux phi. So The current I2 will have to lag E2 by 90 degrees and also phi by 180 degrees, so that the flux phi2 produced by I2 will be lagging phi by 180 degrees as well, and phi will thus be opposed by phi2. So I think that I2 will lag E2 by 90 degrees. Am I right so far?

• There is no phase difference between the windings for a regular transformer. – Eugene Sh. Aug 3 '16 at 17:58
• @Eugene Sh In what other types of transformers would there be a phase difference? – user118685 Aug 3 '16 at 18:04
• ecmweb.com/archive/basics-transformers – Eugene Sh. Aug 3 '16 at 18:04
• For Resistive load there is no phase difference between Induced voltage and Current. If you connect any 'R' and 'L' load the current 'I2' lags the Induced voltage 'E2' – Photon001 Nov 2 '16 at 6:57