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In an alternating current circuit consisting of elements in series, the current increases on increasing the frequency of supply. Which of the following elements are likely to constitute the circuit?

(a) Only resistor                                 

(b) Resistor and an inductor

(c) Resistor and a capacitor                

(d) Only a capacitor

0 2 Views | Posted 4 months ago
Asked by Shiksha User

  • 1 Answer

  • P

    Answered by

    Payal Gupta | Contributor-Level 10

    4 months ago

    This is a multiple choice answer as classified in NCERT Exemplar

    (c, d) According to the question, the current increases on increasing the frequency of supply. Hence, the reactance of the circuit must be decreases as increasing frequency.

    For a capacitive circuit,  capacitive reactance Xc= 12πϑC

    For an CR circuit Z= R2+ (Xc2) when frequency increases X decreases.

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