A practice problem to find Ig & i0

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In summary, Ig and i0 are initial guess and initial estimate values used in a practice problem to provide a starting point for the problem-solving process. They can be determined through trial and error or by applying a formula, and can be adjusted during the process to improve the accuracy of the solution. When selecting these values, it is recommended to choose ones that are close to the expected solution and within the range of the problem, and to start with conservative estimates and adjust as needed.
  • #1
Saeed.z
28
1
Hi all,

i solved a problem which is shown below :

http://im15.gulfup.com/2012-02-15/132933328052.jpg

and here is my solution :

http://im15.gulfup.com/2012-02-15/1329333275651.jpg

i checked my final answer with key solution and found the correct answer is ig= 12.5 Ampere and i0 = 2 ampere !

did i miss something basic here ? or could it be a tricky question ?

thanks
 
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  • #2
I get the same as you ig = 6.25A and io = 1A
If the battery was 250V their answers would be correct !
 
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FAQ: A practice problem to find Ig & i0

What is Ig and i0 in a practice problem?

Ig and i0 refer to the initial guess and initial estimate, respectively, in a practice problem. These values are used as starting points in the problem-solving process and are adjusted based on the results obtained.

How do you determine the values of Ig and i0?

The values of Ig and i0 can be determined using various methods, such as trial and error or by applying a formula. The most common approach is to use trial and error, where different values are tested until the desired result is achieved.

What is the purpose of using Ig and i0 in a practice problem?

The purpose of using Ig and i0 is to provide a starting point for the problem-solving process. These values help to narrow down the range of possible solutions and make the problem more manageable.

Can the values of Ig and i0 be changed during the problem-solving process?

Yes, the values of Ig and i0 can be changed during the problem-solving process. This is often necessary to achieve the desired result and improve the accuracy of the solution.

Are there any tips for selecting appropriate values for Ig and i0?

It is recommended to choose values for Ig and i0 that are close to the expected solution and within the range of the problem. It is also helpful to start with conservative estimates and adjust them as needed based on the results obtained.

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