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Alternating Current · Question 53

AIPMT 2001MCQEasy📈 Topic in 38% papers+4−1
1

A capacitor of capacity C has reactance X. If capacitance and frequency become double then reactance will be

  1. 4X
  2. X/2
  3. X/4
  4. 2X

Answer

(3) X/4

Solution

Capacitive reactance: X = 12 fC

X' = 12 (2f)(2C)

= X4

Answer: (3)

AIPMT 2001

Keep practising — Alternating Current

2

The value of quality factor is

  1. LR
  2. 1 RC
  3. LC
  4. L/R
AIPMT 2001

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