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Resonance In Lcr Circuit Free Doubts and Solutions

CBSE - XII Science - Physics - Alternating Current

what is sharpness of resonance and graph between current and frequency for two different series lcr circuits

Asked by HARPRIYA 5th September 2017, 8:44 PM
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CBSE - XII Science - Physics - Alternating Current

What is the principle of a transformer??

Asked by pksunilnair 26th August 2017, 7:12 PM
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CBSE - XII Science - Physics - Alternating Current

Value of power factor of L.C.R circuit which is in the state of resonance?

Asked by Anshul 14th August 2017, 9:18 PM
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CBSE - XII Science - Physics - Alternating Current

Instantaneous EMF of A.C source is given by E=300 sin314t.What is the value of Erms?

Asked by Anshul 14th August 2017, 9:16 PM
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CBSE - XII Science - Physics - Alternating Current

If the effective value of current in 50Hz A.c circuit is 5 Ampere.What is the peak value of current value of current 1/300 second  after it was zero?

Asked by Anshul 14th August 2017, 9:14 PM
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CBSE - XII Science - Physics - Alternating Current

Could you plaese tell me all the derivations of Physics chapterwise as per CBSE BOARD along with their priority?

Asked by Jyoti Chandra Azad 5th December 2015, 7:18 PM
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CBSE - XII Science - Physics - Alternating Current

An inductor 200 mH, a capacitor of 500 μF and a resistor of 10 Ω are connected in series to a 100 V, variable frequency a.c. source. Calculate the (i) frequency at which the power factor of the circuit is unity (ii) current amplitude at this frequency (iii) Q-factor.

Asked by Topperlearning User 22nd June 2015, 12:49 PM
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CBSE - XII Science - Physics - Alternating Current

Find the Q factor given LCR for a circuit as 2 H, 10 F, 10 Ω.

Asked by Topperlearning User 22nd June 2015, 10:56 AM
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CBSE - XII Science - Physics - Alternating Current

How can Q factor be improved?

Asked by Topperlearning User 22nd June 2015, 10:50 AM
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CBSE - XII Science - Physics - Alternating Current

Can we have resonance in RL or RC circuit?

Asked by Topperlearning User 22nd June 2015, 10:43 AM
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CBSE - XII Science - Physics - Alternating Current

Which circuit is used as filter circuit or rejector circuit and why?

Asked by Topperlearning User 22nd June 2015, 10:43 AM
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CBSE - XII Science - Physics - Alternating Current

What is a parallel resonance circuit? Why is it called so?

Asked by Topperlearning User 22nd June 2015, 10:42 AM
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CBSE - XII Science - Physics - Alternating Current

What happens to the circuit with very high Q value?

Asked by Topperlearning User 22nd June 2015, 10:37 AM
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CBSE - XII Science - Physics - Alternating Current

What is Q factor?

Asked by Topperlearning User 22nd June 2015, 10:37 AM
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CBSE - XII Science - Physics - Alternating Current

What is Acceptor Circuit?

Asked by Topperlearning User 22nd June 2015, 10:37 AM
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CBSE - XII Science - Physics - Alternating Current

What is resonance frequency?

Asked by Topperlearning User 22nd June 2015, 10:36 AM
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CBSE - XII Science - Physics - Alternating Current

1.does the current in an AC circuit lags,leads remains in phase with the voltage of frequency (f) applied to the circuit, when 
(i)f=fr   (ii)f<fr   (iii) f>fr,where fr is the resonant frequency?
 
2.what happens to the focal length of lens when it is immersed in water?

Asked by Karishma 7th March 2015, 10:33 PM
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