Answer:
#include <iostream>
#include <cmath>
#include <iomanip>
using namespace std;
double piValue() {
double p = 1;
int i = 1;
while(true) {
double prev = p;
p += pow(-1, i) * (1.0 / (1 + 2*i));
if(abs(prev - p) < 0.00005) {
break;
}
i++;
}
return 4*p;
}
int main() {
cout << piValue() << endl;
}
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Answer:
I = 4.642 Ampere.
x = 2.145 cm
Explanation:
a) As we know, the magnetic field on the axis of the loop is given as
where a = radius of loop
x = point on the axis of loop
N = No of turns of coil
Current in the loop for which the magnetic field at the center is 0.0750 Tesla is given as x = 0
Therefore, the above equation can be rewritten as
I =
by putting values
I =
Current in the loop for which the magnetic field at the center is 0.0750 Tesla = I = 4.642 Ampere
b)
Now for part b the magnetic field at a distance x from the center is given as
multiply and divide by a on both sides we get
As we know, according to Biot sivorts law,the Magnetic Field at the Center of a circular loop is given as
( Magnetic field at center) =
So we got magnetic field at any point x as
= X
For magnetic field at x is half of the B at center
=
from the above two equations
=
Putting a = 2.80 cm
We have x = 2.145 cm Ans
μ
Depending on the age the toy is made for it could teach younger children things such as letters and numbers and for a older kid it could teach them how different things are put in the robot to help it work
A vacuum gauge is a pressure gauge used to measure pressures lower than the ambient atmospheric pressure, which is set as the zero point, in negative values (e.g.: −15 psig or −760 mmHg equals total vacuum).
Answer:
it is correct as stated in texts
Explanation:
always correct with texts as stated in the text