The given circuit diagram shows a series
connected to a variable frequency 230 V source.
(a) Determine the source frequency which drives the circuit in
(b) Obtain the impedance of the circuit and the
amplitude of current at the resonating frequency.
(c) Determine the rms potential drops across the three elements
of the circuit.
(d) How do you explain the observation that the algebraic sum of
the voltages across the three elements obtained in (c) is greater
than the supplied voltage?
The primary coil of an ideal step-up transformer
has 100 turns and the transformation ratio is also 100. The input
voltages and the power are 220 V and 1100 W respectively.
(i) Number of turns in the secondary
(ii) The current in the primary
(iii) Voltage across the secondary
(iv) The current in the secondary
(v) Power in the secondary
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