Questions
A coil of area 100cm2 having 50 turns is perpendicular to a magnetic field of intensity 0.02 weber/m2. The resistance of the coil is 2 . If it is removed in 1 sec. from the magnetic field, the induced charge produced is
detailed solution
Correct option is D
Induced charge q is given byq=NBAR=50×0⋅02×100×10−42=0⋅005CTalk to our academic expert!
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A circular ring, made of copper wire, has area of 30 cm2 and resistance of 10 . It is placed in a uniform magnetic field of induction 2 tesla with its plane perpendicular to the field. When the loop is rotated through an angle of about its diameter, coulomb of charge flows through it. Then is
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