Ask Experts Questions for FREE Help !
Ask
    Yusf's Avatar
    Yusf Posts: 198, Reputation: 3
    Junior Member
     
    #1

    Nov 11, 2016, 07:51 PM
    Why is the potential of a current carrying loop zero at this position?
    Yes. I think of it analogous to a spring. It should like someone holding a stretched spring . If I hold the loop with my hands (not allowing it to move), it is like a stretched spring and must have extra stored energy in it. So that energy must be its potential energy. And when I leave it, it returns to horizontal position where its potential energy must be zero.
    But its not correct. We know the potential energy at the position shown is zero and that is maximum in the position where torque is zero. Please explain me why.
    The correct values for potential energy can be explained by u=-IABcos theta, but I need a general explanation.

    And what is the need of the minus sign in this formula?
    Attached Images
     
    Yusf's Avatar
    Yusf Posts: 198, Reputation: 3
    Junior Member
     
    #2

    Nov 14, 2016, 06:21 PM
    I did some thinking on this. Maybe the potential is like Celsius for temperature. Anything at 0 degrees Celsius has internal energy. Similarly this loop at 0 potential can still do work by going to negative potential... Am I right?

Not your question? Ask your question View similar questions

 

Question Tools Search this Question
Search this Question:

Advanced Search

Add your answer here.


Check out some similar questions!

Current Carrying capacity [ 2 Answers ]

How to measure the current carrying caoacity of the cable.. Please give me the name of the instument with the help of that I can measure the current carrying capacity..

Current carrying capacity [ 1 Answers ]

I want to know that I have been seen that on PVC cable it is for 70'c & on RUBBER cable it is for 90'c. I don't know why it has been written on the cable if the current carrying capacity of PVC is more... And Please tell me that What is the advantage of RUBBER insulated cable over PVC insulated...

200 ampere current carrying capacity cable sizes [ 0 Answers ]

What size of cable is ideal for 200 amperes current

Carrying Cost of Current Assets [ 2 Answers ]

When financial managers take action to minimize the carrying costs of current assets, they A. are likely to maximize profits B. also consider spoilage costs C. may increase costs due to shortages D. engage in the matching of maturities


View more questions Search