CBSE Class 12-science Answered
An inductor L of reactance XL is connected in series with a bulb B to an a.c. source .Briefly explain how does the brightness of the bulb changes when
a) no. of turns of the inductor is reduced.
b)a capacitor of reactance XC=XL is included in series in the same circuit
Asked by sonalchandra | 11 Sep, 2010, 03:00: PM
Expert Answer
Dear student
In case of AC circuit with a bulb and L, it is similar to LR circuit.
In such a case as L will reduce in case the number of turns are reduced.
As teh instantenous current
as L lowers, the current through the circuit reduces & hence the brightness of the bulb will reduce.
In case of a capacitor being introduced such that Xc= XL,
the resonance condition is achived.
In such secenario,
Io = Vo/Z, where Z = R of the bulb i minimum.
Hence the current in te circuit will be maximum.
bulb will glow the brightest.
Hope that clarifies your query.
Regards
Team
Topper learning
Answered by | 14 Sep, 2010, 10:59: AM
Concept Videos
CBSE 12-science - Physics
Asked by divyanshsahu109 | 11 Mar, 2024, 05:57: PM
ANSWERED BY EXPERT
CBSE 12-science - Physics
Asked by paresh0311 | 06 Mar, 2023, 04:42: PM
ANSWERED BY EXPERT
CBSE 12-science - Physics
Asked by akhilverma471001 | 27 Dec, 2022, 10:14: PM
ANSWERED BY EXPERT
CBSE 12-science - Physics
Asked by arjunsah797 | 29 Mar, 2022, 07:25: AM
ANSWERED BY EXPERT
CBSE 12-science - Physics
Asked by arjunsah797 | 27 Mar, 2022, 08:00: PM
ANSWERED BY EXPERT
CBSE 12-science - Physics
Asked by saivardhanreddy15022003 | 11 Mar, 2022, 06:47: PM
ANSWERED BY EXPERT
CBSE 12-science - Physics
Asked by sky11841 | 08 Sep, 2021, 10:04: PM
ANSWERED BY EXPERT
CBSE 12-science - Physics
Asked by mohitverma1017sn | 30 Dec, 2020, 08:57: PM
ANSWERED BY EXPERT
CBSE 12-science - Physics
Asked by a_k_garg | 11 Oct, 2020, 10:38: AM
ANSWERED BY EXPERT
CBSE 12-science - Physics
Asked by rishicool0205 | 19 Aug, 2020, 02:20: PM
ANSWERED BY EXPERT