The difference in emf between the primary coil of a transformer and the secondary coil is directly related to the relative number of turns in the coils. true or false?

What is a carrier wave and how does it affect what you hear on the radio

Why are graphs useful when interpreting data

Electromagnetic induction. a coil of wire contains n turns and has an electrical resistance r. the radius of each turn is a. initially, inside the coil there exists a uniform magnetic field of magnitude b0 parallel to the axis of the coil. the magnetic field is then reduced slowly. the current induced in the coil is i. how long does it take for the magnitude of the uniform field to drop to zero?