A23-turn circular coil of radius 3.40 cm and resistance 1.00 ω is placed in a magnetic field directed perpendicular to the plane of the coil. the magnitude of the magnetic field varies in time according to the expression b = 0.010 0t + 0.040 0t2, where b is in teslas and t is in seconds.

calculate the induced emf in the coil at t = 5.40 s.

Emf will be                

Explanation:

We have given number of turns N = 23

Radius of the coil r = 3.40 cm = 0.034 m

So area of the coil

Magnetic field is given as

We have to find the emf at t = 5.4 sec

We know that emf is given by

So emf at t = 5.4 sec

potential energy is directly proportional to height.

more height = more potential energy.

greatest increase in height = greatest increase in potential energy

where are the points with the greatest increase in height ?

has to be c-e or d-e .

insects!

explanation: