Select the correct answer. Why is the initial background research step important?
A.
It helps you find very detailed information about the topic to answer key questions.
B.
It helps you become familiar with a topic before doing deeper research.
C.
It helps you to determine which sources are most reliable for your topic.
D.
It helps you shape your arguments in the proper form to convince the reader.

what is   the question

the correct answer is the name of the author of the quotation appears at the text leading up to it   apex 2018

a solenoid is created by wrapping a l = 90 m long wire around a hollow tube of diameter d = 4.5 cm.   the wire diameter is d = 0.9 mm.   the solenoid wire is then connected to a power supply so that a current of i = 9 a flows through the wire.

randomized variablesl = 90 m

d = 4.5 cm

d = 0.9 mm

i = 9 a                                          

write an expression for the number of turns, n, in the solenoid. you do not need to take into account the diameter of the wire in this calculation.

calculate the number of turns, n, in the solenoid.

write an expression for the length of the solenoid (l2) in terms of the diameter of the hollow tube d.

calculate the length of the solenoid (l2)   in meters.

calculate the magnitude of the magnetic field at the center of the solenoid in teslas.

explanation:

connections  to the  book night by elie wiesel.   elie wiesel  is a holocaust survivor. as a young, jewish boy he was taken from his home with his family by the nazis. he was taken because he is jewish.