SaraNextGen Study App [2022-23]
Last Updated On 18-12-2022 - By Jeesha Sara

A series AC circuit containing an inductor (20 mH), a capacitor (120  and resistor (60 ) is driven by an AC source of 24V/50Hz.  The energy dissipated in the circuit in 60 s is:

a.

2.26x103 J

b.

3.39x103J

c.

5.65x102J

d.

5.17x102J


Question ID - 50147 :-

A series AC circuit containing an inductor (20 mH), a capacitor (120  and resistor (60 ) is driven by an AC source of 24V/50Hz.  The energy dissipated in the circuit in 60 s is:

a.

2.26x103 J

b.

3.39x103J

c.

5.65x102J

d.

5.17x102J

1 Answer
5876 Votes
3537

Answer Key : (d) -

R=60    f=50Hz,   

Xc = =

Xc=26.52

XL= =100

Xc=XL=20.24

=

z = 20

cos =

Pavg =VI Cos   I=

=  Cos

=8.64  watt

Q = P.t = 8.64



Next Question :

The dimensions of the field shown in the given figure are

AC = 150 m, AH = 120 m, AG = 80 m, AF = 50 m, EF = 30 m, GB = 50 m, HD = 20 m.

The area of this field is

(a)

6500 cm2

(b)

6550 cm2

(c)

6600 cm2

(d)

6650 cm2


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