Along, thin straight wire with linear charge density λ runs down the center of a thin, hollow metal cylinder of radius r. the cylinder has a net linear charge density 2λ. assume λ is positive. find expressions for the magnitude of the electric field strength inside the cylinder, r

Explanation:

Given that

For straight wire

Charge density= λ

For hollow metal cylinder

Charge density=2 λ

We know that electric filed for wire given as

Now the electric filed due to hollow metal cylinder

Now  by considering the Gaussian surface r<R then only electric fild due to wire will present.So

At r<R

probably not the "magnets"in the magnet, so to speak, are thought to be electrons orbiting in shells. vurrent loops two sides to the loop

massxgravity x heght=weightxheight= pe

4900=490xh

h=10