Physics Olympiad
Chapter 21, Problem 4. A single loop of
wire with an area of x1 m2 is in a uniform
magnetic field that has an initial value of x2 T, is
perpendicular to the plane of the loop, and is decreased with the
constant rate of x3 T/s.
(a) What emf is
induced in this loop?
(b) If the loop has a resistance of x4
Ω, find the current induced in the loop.
Chapter 21, problem 7. A closely wound
rectangular coil of N turns has dimensions of x1 cm by x2
cm. The plane of the coil is rotated from a position where it makes
an angle of x3ᵒ with a magnetic field of x4 T
to a position perpendicular to the field. The rotation takes x5
s.
What is average emf induced on the coil?
(a) What emf is induced in this loop?
What is average emf induced on the coil?
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