8

9 a)
b)

10

11

0000EST130121802

20Q

ണ്ട അജു

Module-II

Determine the average value and rms value of the current waveform shown in
figure below.

i( A)

{2 ಬೋ 2------2----

74 ‏کم‎ - -- --- ~------ ------- ∣−−−−
oT 7
0 1 2T 3 time(sec)
OR

A coil of 50 Q resistance is placed in a magnetic field of ImWb. The coil has 50
turns and a galvanometer of 400 Q resistance is connected in series with it. Find the
average induced emf and the resulting current if the coil is moved in 0.1 second
from the given field to another field of 0.2mWb.
Define rms value and average value ofa time varying wave form.

०0 पाला
A resistor of 5062, an inductor of 0.111 and a capacitor of 4011 are connected in
series and the combination is connected across 220V, 50 Hz supply. Calculate (i)
the circuit impedance (ii) resulting current (iii) power factor (iv) phase angle and
(v) power consumed by the circuit.

OR

Three inductive coils, each with a resistance of 22 Q and an inductance of 0.05 H
are connected in first in star and then in delta, to a 3 phase 415 V, 50 Hz supply.
Calculate for both star and delta connections, (i) phase current and line current and

(ii) total power absorbed.

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