Question
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Answer (Detailed Solution Below)
Option 3 : $31.4\ \Omega$ / $31.4\ \Omega$
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Detailed Solution
सही उत्तर $31.4\ \Omega$ / $31.4\ \Omega$ है।
Key Points
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prepsnap.in • Part -AQuestion:
A coil of inductance $0.1\ \mathrm{H}$ is connected to a $50\ \mathrm{Hz}$ ac supply. Its inductive reactance is: / $0.1\ \mathrm{H}$ प्रेरकत्व की कुंडली $50\ \mathrm{Hz}$ प्रत्यावर्ती आपूर्ति से जोड़ी गई है। इसका प्रेरणिक प्रतिघात है:
1.
$5\ \Omega$ / $5\ \Omega$
2.
$10\ \Omega$ / $10\ \Omega$
3.
$31.4\ \Omega$ / $31.4\ \Omega$
4.
$314\ \Omega$ / $314\ \Omega$
Correct Answer: $31.4\ \Omega$ / $31.4\ \Omega$
$X_L = 2\pi fL = 2\pi \times 50 \times 0.1 = 10\pi \approx 31.4\ \Omega$. / $X_L = 2\pi fL = 2\pi \times 50 \times 0.1 = 10\pi \approx 31.4\ \Omega$।
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