Question

(i) Explain briefly what you understand by Faraday's law of electromagnetic induction.

(ii) How is Faraday's law applied in the construction of a transformer?

Answer #1

In an electromagnetic induction experiment, you are keeping a
conducting circular loop of 50 cm radius placed perpendicular to a
magnetic field of 5 T and magnetic field changed from maximum to
zero within 0.50 s. Is law of electromagnetic induction applied
here? Justify your answer. How can you evaluate the magnitude of
induced emf in the coil? When the circular coil having a diameter
of 20 cm is used in above case, evaluate the induced emf? Compare
your results...

For a Magnetic field Mapping and Electromagnetic Induction
experiment, how would one explain the following:
- Why do you see a sudden deflection while you insert and remove
a bar magnet
- Explain why there is no deflection when you hold a bar magnet
stationary
- Explain why there was a defelection when you used a current
carrying wire, instead of a magnet

Briefly explain what you understand by Earnings per share (EPS).
How is EPS calculated and why it is important for investors to
gauge the value of a share?

I do not understand the law of demand and how it is graphed.
This is for my Macroeconomics class in college.

Consider the following expression: 7^n-6*n-1
Using induction, prove the expression is divisible by 36.
I understand the process of mathematical induction, however I do
not understand how the solution showed the result for P_n+1 is
divisible by 36? How can we be sure something is divisible by 36?
Please explain in great detail.

what is the applicable law of Riegel vs Medtronic? I dont
understand what applicable law is. is it all the laws that was
involved in this case or is it asking who won the case?

Briefly explain whether and if so how an increase in firms'
markup affects the (i) IS curve, (ii) the LM curve, and (iii) the
Phillips curve.

a. What are 2 ways of producing faradays law of induction?
b. how are inductors and capacitors represented in circuits?
c. name the 2 types of ideal transformer.and how these work.

(Explain what are (i) constants of motion and (ii) ignorable
(or cyclic) coordinates. How are they related?

Can you explain how proof by induction works and give an
example?

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