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Ii) If the magnetic flux passing through a coil of 100 turns ofwire increases by 15 weber in 2 second. Find the e.m.f.induced in the coil. An electric bulb is marked as 240 V-60W. What does it mean? |
Answer» <html><body><p><a href="https://interviewquestions.tuteehub.com/tag/decrease-946104" style="font-weight:bold;" target="_blank" title="Click to know more about DECREASE">DECREASE</a> in the <a href="https://interviewquestions.tuteehub.com/tag/flux-993757" style="font-weight:bold;" target="_blank" title="Click to know more about FLUX">FLUX</a> = <a href="https://interviewquestions.tuteehub.com/tag/0-251616" style="font-weight:bold;" target="_blank" title="Click to know more about 0">0</a>.005 - 0 = 0.005</p><p></p><p>Weber,</p><p></p><p>no of turns = 100 turns</p><p></p><p>time = 5 s</p><p></p><p>e.m.f induced = <a href="https://interviewquestions.tuteehub.com/tag/n-568463" style="font-weight:bold;" target="_blank" title="Click to know more about N">N</a> × rate of increase of <a href="https://interviewquestions.tuteehub.com/tag/magnetic-551115" style="font-weight:bold;" target="_blank" title="Click to know more about MAGNETIC">MAGNETIC</a> flux</p><p></p><p>= 100 ×× 0.005 / 5</p><p>•</p><p>• • e.m.f induced e = 0.1 v = 100 mv..</p></body></html> | |