 is 0, then when we feed, where is 9 to the 0? Sir, this is similar to 0, right? Yes, from this. Right here, sir. 2 pi and it can change the way. You can actually do it. But consistently by 3, how do you feel of 0? Sir, that's really something I got there, doing the distance between. How do you feel of 0? Only how do you feel of 0, sir? Sir, question. See, I have been using this for a long time. All that knowledge. Sir, in the case when the pilot is a pilot. Yes, of course. And dissent the pilot right away. So, I have discussed that if you are not able to solve it next. The hint is, imagine a dx width of a solid. So, until there is some solid in the numerical value. So, next law in this chapter, which is similar to Gauss theorem, is Ampere circuit law.