Unit 11.2 (e) - Electromagnetic induction || Problems on R.M.S and Transformers || Tribe Topper
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βοΈ In this video you will learn to apply the formulae for R.M.S quantities and transformer ratio to mathematical problems
π In this video weβll walk you through a few problems: example 1 :
βThe diagram below shows the variation with time t of the emf E generated in a rotating coil.
βCalculate: a) the rms value of the emf b) the frequency of rotation of the coil
β Example 2: The transformer is 80% efficient. The rms current in the primary coil is 0.25 mA. Calculate the rms value of the current in the secondary coil.
TIMESTAMPS
β Example 1 - 0:00:14
Example 2 β 0:02: 08
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