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Question

A uniform thin metallic rod of length l = 8 m, is hinged at point A (at a distance l4 from one end of the rod). If the rod is rotated with angular speed 2 rad/s about hinge in a uniform magnetic field of magnitude 4 T perpendicular to the plane of rotation. The induced emf between two ends of the rod will be

लम्बाई l = 8 m की एक समरूप पतली धात्विक छड, बिंदु A (छड़ के एक सिरे से l4 दूरी पर) पर कीलकित है। यदि छड़ को घूर्णन तल के लम्बवत् 4 T परिमाण वाले एकसमान चुम्बकीय क्षेत्र में कीलक के सापेक्ष कोणीय चाल 2 rad/s से घुमाया जाता है। तब छड़ के दोनों सिरों के मध्य प्रेरित वि.वा.ब. होगा


A
98 V
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B
144 V
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C
128 V
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D
61 V
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Solution

The correct option is C 128 V
Solution

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