A resistance (R), inductance (L) and capacitance (C) are connected in series to an ac source of voltage V having variable frequency. Calculate the energy delivered by the source to the circuit during one period if the operating frequency is twice the resonance frequency.
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A circuit is connected to an ac source of variable frequency. As the frequency of the source is increased,
Option : (a) L,C and R
2 Answers 4 views
A series circuit consists of a resistance inductance and capacitance.The applied voltage and the current at any instant are given by `E=141.4 cos(5000
Correct Answer - `4 muF,R=141.4/5 Omega` Here phase difference `(0)=360^(0)` & `omega=5000` at Resonance `C=1/(5000)^(2)xx1/(0.01)` `R=V_(0)/I_(0)=141.4/5`
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A 2000 Hz, 20 volt source is connected to a resistance of 20 ohm, an inductance of `0.125//pi` H and a capacitance of `500/pi` nF all in series. Calcu
Correct Answer - 50 power`(P)=I_(rms)^(2)R , P=[20/sqrt(R^(2)+(omegaL-1/(omegaC))^(2))]^(2)xxR` where `omega=2xxpixx2000` `DeltaH=(ms)Deltatheta=P(Deltat) rArrDeltat=((ms)Deltatheta)/P=(100xx10)/P=50 sec. rArrx=8`
2 Answers 1 views
A capacitor of capacitance C is having a charge `Q_(0)`. It is connected to a pure inductor of inductance L. The inductor is a solenoid having N turns
Correct Answer - `(1)/(2) sqrt((3L)/(C)) (Q_(0))/(N)`
2 Answers 1 views
A capacitor having initial change `q_(0)` and capacitance C is connected to a variable resistance `R`. The resistance R can have values ranging from O
Correct Answer - `R=R_(0)[1-(t)/(R_(0)C)]`
2 Answers 1 views
A solenoid has an inductance of 10 H and a resistance `R= 5 Omega` . It is connected ta a 10 V battery . How long will be it take for the magnetic ene
Correct Answer - `1.386 s`
2 Answers 1 views
A series circuit consists of a resistance of `15 Omega`, an inductance of 0.08H and a capacitor of capacitance `30 mu F`. The applied voltage has freq
Correct Answer - `60.65^(@)` lead
2 Answers 1 views
A series circuit consists of a resistance, inductance and capacitance. The apllied voltage and the current at any instant are given as e=141.4 cos (30
Correct Answer - `33.33 mu F`
2 Answers 1 views
A resistance of `10Omega` is joined in series with an inductance of 0.5H. What capacitance should be put in series with the combination to obtain the
Correct Answer - `20.24 mu F, 20A, 200V, 3142 V, 3142 V`
2 Answers 1 views
Two capacitors of equal capacitance when connected in series hae net capacitance `C_(1)` and when connected in parallel have net capacitance `C_(2)` w
Correct Answer - `C_(1)//C_(2)=1//4`
2 Answers 1 views