CBSE Class 12-science Answered
An inductor, a capacitor and a resistor are connected in series across an ac source of voltage. If the frequency of the source is decreased gradually. the reactance of:
(a) both the inductor and the capacitor decreases.
(b) inductor decreases and the capacitor increases.
(c) both the inductor and the capacitor increases.
(d) inductor increases and the capacitor decreases.
Asked by paresh0311 | 06 Mar, 2023, 04:42: PM
Expert Answer
In a given circuit an inductor, a capacitor, and a resistor are connected in series across an AC source of voltage.
Now when the frequency of the source is decreased gradually, the reactance of the inductor will increase, and the reactance of the capacitor will decrease. Since the inductive reactance is directly proportional to the frequency of the source, while the capacitive reactance is inversely proportional to the frequency of the source.
i.e.,
Hence the correct option is inductor decreases and the capacitor increases.
Answered by Jayesh Sah | 06 Mar, 2023, 06:01: PM
Concept Videos
-
Resonance in AC Circuits - Part 1
This video explains resonant frequency, imopedence and current at resonance... -
Resonance in AC Circuits - Part 2
This video explains sharpness of resonane and quality factor of the LCR cir... -
Resonance in AC Circuits - Exam Decoded
This video contains practice questions on resonance in LCR circuit.
CBSE 12-science - Physics
Asked by paresh0311 | 06 Mar, 2023, 04:42: PM
ANSWERED BY EXPERTCBSE 12-science - Physics
Asked by rohitraman1115 | 12 Jan, 2019, 10:40: AM
ANSWERED BY EXPERTCBSE 12-science - Physics
Asked by Topperlearning User | 22 Jun, 2015, 10:36: AM
ANSWERED BY EXPERTCBSE 12-science - Physics
Asked by Topperlearning User | 22 Jun, 2015, 10:37: AM
ANSWERED BY EXPERTCBSE 12-science - Physics
Asked by Topperlearning User | 22 Jun, 2015, 10:37: AM
ANSWERED BY EXPERTCBSE 12-science - Physics
Asked by Topperlearning User | 22 Jun, 2015, 10:37: AM
ANSWERED BY EXPERTCBSE 12-science - Physics
Asked by Topperlearning User | 22 Jun, 2015, 10:42: AM
ANSWERED BY EXPERTCBSE 12-science - Physics
Asked by Topperlearning User | 22 Jun, 2015, 10:43: AM
ANSWERED BY EXPERTCBSE 12-science - Physics
Asked by Topperlearning User | 22 Jun, 2015, 10:43: AM
ANSWERED BY EXPERTCBSE 12-science - Physics
Asked by Topperlearning User | 22 Jun, 2015, 10:50: AM
ANSWERED BY EXPERT
