Answer:
the answer : domain is third one
Step-by-step explanation:
Answer:

Step-by-step explanation:
Given voltage of primary coil is 
And voltage of secondary coil is 
A transformer is a device that contains primary and secondary coil. These coils are mounted on soft iron. The change in voltage depends upon the number of turns of primary coil
and secondary coil
.
Following equation represents the relation between them.

Then, ratio of the number of wire turns on the primary coil to the number of turns on the secondary coil is

Answer:
2348.25 m or 2348 1/4
Step-by-step explanation:
101/2 x 15 1/2 x 3 = 2348.25
The area is 192 and the speed it’s increasing at is 24 cm^2/s