Questions
In a magnetic field of 0.05 T, area of a coil changes from 101 cm2 to 100 cm2 without changing the resistance which is The amount of charge that flow during this period is
detailed solution
Correct option is A
ϕ=B⋅A⇒Change in flux, △φ=B⋅△A=0.05(101−100)10−4 Wb = 5×10−6 Wb Now, charge, △Q=△φR=5×10−62 C=2.5×10−6 CTalk 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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