Questions
A rectangular coil of 20 turns and area of cross-section 25 sq. cm has a resistance of 100 . If a magnetic field which is perpendicular to the plane of the coil changes at a rate of 1000 tesla per second, the current in the coil is
detailed solution
Correct option is C
e=−dΦdt and i=eR ∴i=−1RdΦdt=−1Rddt(nBA)=−nARdBdt=−20×25×10−4100×1000=−0⋅5amp=|0⋅5|ampnegative sign indicates the direction.Talk to our academic expert!
Similar Questions
A conductor rod AB moves parallel to X-axis in a uniform magnetic field, pointing in the positive X-direction. The end A of the rod gets
799 666 8865
support@infinitylearn.com
6th Floor, NCC Building, Durgamma Cheruvu Road, Vittal Rao Nagar, HITEC City, Hyderabad, Telangana 500081.
free study material
JEE Mock Tests
JEE study guide
JEE Revision Notes
JEE Important Questions
JEE Sample Papers
JEE Previous Year's Papers
NEET previous year’s papers
NEET important questions
NEET sample papers
NEET revision notes
NEET study guide
NEET mock tests
