NEET | 2016Work, Power and EnergyHard
Question
40. An inductor 20 mH, a capacitor 50 F and a resistor 40 are connected in series across a source of emf V = 10 sin 340 t. The power loss in A.C. circuit is :
Options
A.
0.51 W
B.
0.67 W
C.
0.76 W
D.
0.89 W
Solution
wL = 340 20 10-3 = 68 10-1 = 6.8
= 0.0588 103 = 58.82
2 =
2 =
Power =
= 0.51 w
Create a free account to view solution
View Solution FreeMore Work, Power and Energy Questions
If the kinetic energy is increased by 300%, the momentum will increase by :...A heavy nucleus at rest breaks into two fragments which fly off with velocities 8 : 1. The ratio of radii of the fragmen...A wire when connected to 220 V mains supply has power dissipation P1. Now the wire is cut into two equal pieces which ar...A force = (3x2+2x−7) N acts on a 2 kg body as a result of which the body gets displaced from x = 0 to x = 5m. The ...A locomotive of mass m starts moving so that its velocity varies according to the law v = k√s where k is constant ...