‹ Back to the paper
An ac generator generates an emf which is given by . Calculate: (1) frequency of the emf. (2)…
(a)[2.0]
An ac generator generates an emf which is given by $e = 311\sin(240\pi t)\text{ V}$. Calculate:
(1) frequency of the emf.
(2) r.m.s. value of the emf.
(b)[3.0]
The primary coil of a transformer has $60$ turns whereas its secondary coil has $3000$ turns.
(1) If a $220\text{ V}$ ac voltage is applied to the primary coil, how much emf is induced in the secondary coil?
(2) If a current of $5\text{ A}$ flows in the primary coil, how much current will flow in a load in the secondary coil? State the assumption you have made regarding the transformer, in this calculation.
Answer
No answer yet.
From ISC 2023 Physics Paper 1, question 18(ii).