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27082

Derive the expression for energy stored in an inductor.
Find the values of branch currents in the circuit shown below using mesh analysis.

Differentiate between ideal and real current sources with the help of terminal ഗ്‌
characteristics and circuit representations.
Find the branch currents in the circuit shown below using node analysis.

4 ٦
20

10% 32
Define the terms - mmf, flux, reluctance and permeability.
A steel ring, 30 cm mean diameter, has an air gap of Imm long. It is wound
uniformly with 600 turns of wire carrying a current of 2.5 A. Neglect magnetic
leakages. The iron path has about 40% of the total mmf. Estimate the values of mmf
in air gap, magnetic flux in iron path, reluctance of iron path and flux density in air
gap.
What is meant by the terms rms value, average value, peak factor and form factor in
connection with periodic waveforms.
Find the average value rms value and form factor of the sinusoidal voltage shown in
figure, where Vm =100V, a = 7/4

Vm

‎வனை 2121-௨311‏ ا

‎Prove that the current through a pure inductor lags 90° the sinusoidal voltage applied
across it.
Calculate the branch currents in the circuit shown below.

‎wt

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