A very long, straight solenoid with a diameter of 3.00 cm is wound with 40 turns of wire per centimeter, and the windings carry a current of 0.240 A. A second coil having N turns and a larger diameter is slipped over the solenoid so that the two are coaxial. The current in the solenoid is ramped down to zero over a period of 0.70 s. What average emf is induced in the second coil if it has a diameter of 3.90 cm and N = 48? Express your answer in microvolts to two significant figures. What is the induced emf if the diameter is 7.80 cm and N = 96? Express your answer in volts to two significant figures.

Induced emf in first coil is 0.986 and in second case 0.396

Explanation:

Given:

Number of turns per centimeter

Current A

Current rate

The magnetic field in solenoid is given by,

Where

We write,

(A)

Number of turns

Radius of coil m

From faraday's law

Where

(B)

Number of turns

Radius of coil m

From faraday's law

Where

Therefore, induced emf in first coil is 0.986 and in second case 0.396

gets less

cell differentiation  is how generic embryonic  cells  become specialized  cells. this occurs  through a process called gene expression. gene expression is the specific combination of genes that are turned on or off (expressed or repressed), and this is what dictates how a  cell  functions.

explanation: