जब प्रेरक के माध्यम से प्रवाहित होने वाली विद्युत धारा 6 एम्पियर है, तो 5 हेनरी प्रेरक द्वारा एकत्रित ऊर्जा (जूल में) ज्ञात कीजिये।

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SSC JE EE Previous Year Paper 6 (Held On: 25 Jan 2018 Morning)
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  1. 94
  2. 90
  3. 60
  4. 40

Answer (Detailed Solution Below)

Option 2 : 90
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दिया गया है कि, प्रेरकत्व (L) = 5 हेनरी

धारा (I) = 6 एम्पियर

प्रेरक में संग्रहीत ऊर्जा इस प्रकार है,

\(E = \frac{1}{2}L{I^2} = \frac{1}{2} \times 5 \times {6^2} = 90\;J\)

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