The wire in Fig. 29-2 carries a current I that is decreasing with time at a constant rate. The induced emf in each of the loops is such that
A)
no emf is induced in any loop.
B)
all loops experience counterclockwise emf.
C)
loop A has clockwise emf, loop B has no induced emf, and loop C has counterclockwise emf.
D)
loop A has counterclockwise emf, loop B has no induced emf, and loop C has clockwise emf.
E)
loop A has counterclockwise emf, loop B clockwise emf, and loop C has clockwise emf.
Question 2
A coil lies flat on a horizontal table top in a region where the magnetic field points straight down. The magnetic field disappears suddenly.
When viewed from above, what is the direction of the induced current in this coil as the field disappears? A)
counterclockwise
B)
clockwise
C)
clockwise initially, then counterclockwise before stopping
D)
counterclockwise initially, then clockwise before stopping
E)
There is no induced current in this coil.
The Geologic Time Scale
Continental Drift: An Idea Before Its Time
Find the voltage, current and power for each resistor in the circuit below
A flat circular coil having 57 turns of very thin wire has a diameter of 9.5 cm and carries 7.2 ...
Time-of-entry mapping