PART- B
Answer any fourfull Questions
11 a. Using Nodal Analysis find the currents flowing through the various branches in )6( the
circuit shown in figure below.

20 OSA

b. Calculate the current supplied by the
battery inthe circuit shown in figure below (4)
2

12 a. Using mesh analysis, determine the current supplied by each battery in the circuit
(6) shown in figure.

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b. Drive the expression for coefficient of coupling (K) between two magnetically (4) coupled
circuits.
13 Calculate the current required to be passed through the central limb winding so as (10)
to produce a flux of 1.6 mWb in this limb. Length of iron in the central limb is 15 cm.
Cross sectional area of the central limb is 8 cm and that of outer limbs 4 cm . The mean

length of iron of the outer limb is 32 cm each. Given that for iron, for a flux density of 2.0
Wb/m?, the value of ಗ is 800 AT/m.

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14 Find the average value and r.m.s value of the waveform given below.