Questions
If a coil of 40 turns and area 4.0 cm2 is suddenly removed from a magnetic field, it is observed that a charge of 2.0 x 10-4 C .flows into the coil. If the resistance of the coil is 80 , the magnetic flux density in Wb/m2 is .......
detailed solution
Correct option is B
ΔϕR= ΔQTalk to our academic expert!
Similar Questions
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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