EE Qs: Torn Between C & D - Can Anyone Explain?

  • Thread starter Flatshoe
  • Start date
  • Tags
    Ee
In summary, the conversation discusses two questions related to electrical engineering. The first one asks about the frequency of a sine wave and the second one asks about the direction of a magnetic field. The answers to these questions involve understanding equations and using the right hand rule and Fleming's left hand rule.
  • #1
Flatshoe
9
0
rw08ht.jpg


I'm torn between C and D, can anyone explain which answer is which and WHY?


6f31vm.jpg


Also, I don't know whether the answer to this is "in" or "out", however I'm quite sure it's out. Does the direction of a magnetic field have to be North to South?
 
Physics news on Phys.org
  • #2
For the first one, keep in mind that a sin wave is written as A*sin(w*t). For a given frequency, what is w (omega)?

For the second one, are you familiar with "the right hand rule"? Making a gun with your thumb and index finger and then orienting your middle finger at a right angle to your index finger.

Thumb = Force
Index = Field (Magnetic)
Middle = Current

So the field/index goes down (from north to south), the current/middle goes from left to right, the force should be your thumbs direction.
 
  • #3
for the first question, you should keep in mind that in EE we always write as below v(t)=2*sin(2*pi*f1*t)+2*sin(2*pi*f2*t)+4sin(2*pi*f3*t)

Match this with the given equations and find f1, f2 and f3.

for second question, you have to use Fleming's left hand rule. The figure represents motor action. Keep middle finger in direction of current, index finger in direction of flux from north to south pole, now your thumb shows direction of force acting on the conductor.
 

1. What does "EE Qs: Torn Between C & D" mean?

EE Qs refers to Electrical Engineering Questions, and in this case, it is specifically referring to a question about being torn between two potential solutions, C and D.

2. Can you explain the difference between solutions C and D?

Solution C and D are both potential solutions to an electrical engineering problem. The difference between them could be in the design, materials used, or overall functionality. It is important to carefully consider the differences and choose the solution that best fits the specific problem at hand.

3. How do I decide between solution C and D?

Deciding between solution C and D requires careful analysis and consideration of the problem at hand. This may involve conducting experiments, simulations, or consulting with other experts in the field. It is important to thoroughly evaluate the strengths and weaknesses of each solution before making a decision.

4. Are there any other potential solutions besides C and D?

There may be other potential solutions besides C and D, depending on the specific problem and context. It is always worth exploring all possible options and considering their potential effectiveness before making a decision.

5. Can you provide examples of similar situations where one solution was chosen over another?

There are countless examples in the field of electrical engineering where one solution was chosen over another. For instance, in the design of a circuit, one may choose to use a transistor instead of a diode due to its superior performance in that specific application. It is important to carefully consider all factors and make an informed decision based on the specific problem at hand.

Similar threads

  • Electromagnetism
Replies
6
Views
525
  • Engineering and Comp Sci Homework Help
Replies
1
Views
734
  • Introductory Physics Homework Help
2
Replies
40
Views
763
Replies
15
Views
1K
Replies
12
Views
659
Replies
10
Views
937
  • Electromagnetism
Replies
1
Views
660
  • Engineering and Comp Sci Homework Help
Replies
3
Views
1K
Replies
3
Views
1K
  • Other Physics Topics
Replies
6
Views
2K
Back
Top