Home
Class 12
PHYSICS
In Exercises 7.3 and 7.4, what is the ne...

In Exercises 7.3 and 7.4, what is the net power absorbed by each circuit over a complete cycle. Explain your answer.

Text Solution

Verified by Experts

In both the case the net power consumed is zero because net power consumed is
P = ` E_(rms) I_(rms) cos phi`
where ` E_(rms)` is the rms value of voltage
` I_(rms)` is the rms value of current
`phi` is the phase difference between voltage and current
` phi = 90 `
`therefore " " `P = 0
Promotional Banner

Topper's Solved these Questions

  • ALTERNATING CURRENT

    MODERN PUBLICATION|Exercise NCERT FILE ADDITIONAL EXERCISES|15 Videos
  • ALTERNATING CURRENT

    MODERN PUBLICATION|Exercise NCERT FILE EXEMPLAR PROBLEMS Subjective Question (VERY SHORT ANSWER TYPE QUESTIONS)|13 Videos
  • ALTERNATING CURRENT

    MODERN PUBLICATION|Exercise TOUGH & TRICKY PROBLEMS|12 Videos
  • ATOMS

    MODERN PUBLICATION|Exercise Chapter Practice Test|16 Videos

Similar Questions

Explore conceptually related problems

A 30 mH pure inductor is connected to 220V, 50 Hz A.C. supply .Net power absorbed by the circuit over a complete cycle is

A 30 mH pure inductor is connected to 220V, 50 HzA.C. supply .Net power absorbed by the circuit over a complete cycle is

A circuit containing a 0.1 H inductor and a 500 muF capacitor in series is connected to a 230 volt 100//pi Hz supply.The resistance of the circuit is negligible. (a)Obtain the current amplitude and rms values. (b)Obtain the rms values of potential drops across each element ( c)What is the average power transferred to the inductor?(d)What is the average power transferred to the capacitor?(e)What is the total average power absorbed by the circuit ?[Average implies average over one cycle]

A circuit containing 0.1H inductor and a 500muF capacitor in series is connected to a 230V, 100//pi Hz supply. The resistacne of the circuit is negligible. (a) Obtain the current amplitude and rrns values. (b) Obtain the rrns value of potential drops across each element. (c) What is the average power transferred to the inductor? (d) What is the average power transferred to the capacitor? (e) What is the total average power absorbed by the circuit? ['Average' implies average over one cycle.]

A circuit containing a 80 mH inductor and a 60 mu F capacitor in series is connected to a 230 V, 50 Hz supply. The resistance in the circuit is negaligible. (a) Obtain the current amplitude and rms values. (b) Obtain the rms values of potential drops across each element . (C) What is the average power transferred to the inductor? (d) What is the average power transferred to the capacitor ? (e) what is the total average power absorbed b the circuit ? ( Average'implies' averaged over one cycle '. )

Can we draw a chord of length 15 cm in a circle of radius 7 cm ? Explain your answer .