A single loop of wire with an area of 9.07×10?2m2is in a uniform magnetic field that has an initial value of 3.73T , is perpendicular to the plane of the loop, and is decreasing at a constant rate of 0.199T/s .
What emf is induced in this loop?
If the loop has a resistance of 0.650? , find the current induced in the loop.
A coil of wire with 217 circular turns of radius 3.20cm is in a uniform magnetic field along the axis of the coil. The coil has R = 41.5?.
At what rate, in teslas per second, must the magnetic field be changing to induce a current of 0.149Ain the coil?
In a physics laboratory experiment, a coil with 210 turns enclosing an area of 7.0cm2 is rotated from a position where its plane is perpendicular to the earth's magnetic field to one where its plane is parallel to the field. The rotation takes 5.0×10?2s . The earth's magnetic field at the location of the laboratory is 6.0×10?5T .
What is the total magnetic flux through the coil before it is rotated?
What is the total magnetic flux through the coil after it is rotated?
What is the average emf induced in the coil?