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What is the emf equation for transformer? |
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Answer» Always maximum flux reaches from zero to maximum in one quarter of the cycle. That is in … of second. That is equal to 1/200 second. Average rate of change of flux = Qm / … f. = Qm * 4 * f. = 4 f Qm Weber / second. As the coil has N turns the average emf induced in the coil = 4 f Qm N volts. But the rms. Value = average value * form factor. ∴ rms. Value of emf = 1.11 * 4 f Qm N volts. = 4.44 f Qm N volts. |
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