A rectangular coil of single turn, having area A, rotates

Question

A rectangular coil of single turn, having area A, rotates in a uniform magnetic field B an angular velocity w about an axis is perpendicular to the field .If initially the plane of coil is perpendicular to the field,then the average induced e.m.f. when it has rotated through 90 degree is???a. wBA/pie b. wBA/2 pie c. wBA/4 pie d. 2wBA/ pie

ROSHAN MUJEEB · Accepted Answer

initially flux,ϕ=BAcos0=BAAfter rotating through an angle90o.Flux through the coil is zero.So,&Delta;ϕ=BAAngular speed=w, so, time period=&omega;/2&pi;​=T4T​is time taken to rotate90o.So,&Delta;t&Delta;ϕ​=T/4BA​=&pi;2BA&omega;​

Magnetism> A rectangular coil of single turn, having...

Kevin Nash , 11 Years ago

ROSHAN MUJEEB

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Magnetism> A rectangular coil of single turn, having...

Kevin Nash , 11 Years ago

ROSHAN MUJEEB

LIVE ONLINE CLASSES

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