An infinitely long cylindrical conductor has radius r and uniform surface charge density σ.
1-)in terms of σ and r, what is the charge per unit length λ for the cylinder?
express your answer in terms of the given quantities and appropriate constants.
2-)in terms of σ, what is the magnitude of the electric field produced by the charged cylinder at a distance r> r from its axis?
express your answer in terms of the variables σ, r, r, and constant ε0.
3-)express the result of part b in terms of λ.
express your answer in terms of the variables λ, r, r, and constants ε0 and п.

The long handle on a rake is a(n) a. lever b. screw c. wedge d. inclined plane

What type of relationship exists between the length of a wire and the resistance, if all other factors remain the same? o a. resistance is directly related to length. ob. resistance is directly related to the square of the length. c. resistance is inversely related to the length. d. resistance is inversely related to the square of the length. reset next

Which of the following statements comparing electron microscopy and light microscopy is false? which of the following statements comparing electron microscopy and light microscopy is false? both the electron microscope and the light microscope use the same wavelengths for illumination. images produced by light microscopes can be in color, whereas electron microscope images are black and white unless they are artificially colored. the electron microscope has greater resolution than the light microscope. electron microscopes can allow examination of viruses and internal cell structures, whereas light microscopes are limited to objects that are 0.5 micrometers and larger. request answer