Answer with Explanation:
We are given that
Current in conductor=I=4.99 A (-x direction)
Magnetic field=B=
(1mT=
)
x(in m) and B (in mT)
Length of conductor is given in negative x- direction


Force on current carrying conductor is given by


Integrating on both sides then we get

(
![\vec{F}=-(4.99\times 10^{-3}\times 8.72)[\frac{x^3\hat{k}}{3}]^{2.77}_{1.41}](https://tex.z-dn.net/?f=%5Cvec%7BF%7D%3D-%284.99%5Ctimes%2010%5E%7B-3%7D%5Ctimes%208.72%29%5B%5Cfrac%7Bx%5E3%5Chat%7Bk%7D%7D%7B3%7D%5D%5E%7B2.77%7D_%7B1.41%7D)


a. x- component of force=0
b.y- component of force=0
c.z- component of force=-0.268 N
I read it’s a unit of energy
Answer:
The electric potential energy is 6.72 x 10^-11 J.
Explanation:
Potential difference, V = 4.2 x 10^8 V
charge of electron, q = - 1.6 x 10^-19 C
Let the potential energy is U.
U = q V
U = 1.6 x 10^-19 x 4.2 x 10^8
U = 6.72 x 10^-11 J
Answer:
increasing the temperature of the rod
Explanation:
Sound wave is a longitudinal wave and its speed in a solid rod is given by the formula

here we know that
Y = young's modulus
= density of the medium
so as we increase the temperature of rod the density of the rod will decrease while the elasticity will remain same
So on increasing the temperature we can say that speed will increase due to decrease in the density