A metal rod of length 2 m is rotating with an angualr velocity of 100`"rads"^(-1)` in plane perpendicular to a uniform magnetic field of 0.3 T. The po

Question

A metal rod of length 2 m is rotating with an angualr velocity of 100`"rads"^(-1)` in plane perpendicular to a uniform magnetic field of 0.3 T. The po

A metal rod of length 2 m is rotating with an angualr velocity of 100`"rads"^(-1)` in plane perpendicular to a uniform magnetic field of 0.3 T. The potential difference between the ends of the rod is
A. 30 V
B. 40 V
C. 60 V
D. 600 V

Monjur Alahi

5 views

2025-01-04 04:42

1 Answers

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Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Salim Ahmed Kawsar

Correct Answer - C
Induced emf, when rod rotates in a vertical plane perpendicular to magnetic field is given as
`e=(1)/(2)Bl^(2)omega=(1)/(2)xx0.3xx2^(2)xx100=60V`

5 views Answered 2023-02-05 15:29