10. 2074 Set B Q. No. 4a Different charges q1, q2,q3. are placed
at r1, r2, r3,
respectively in an electrostatic field. Write
expressions for the total electric potential and intensity at R
in proper notations. r1, r2, r3 ... and R refer to the distances
from origin of the field (or space).
​

An ideal polarizer with its transmission axis rotated 30 degrees to the vertical is placed in a beam of unpolarized light of intensity 10w/m^2. after passing through the polarizer, what is the intensity of the beam? a. 8.7 w/m^2 b. 7.5 w/m^2 c. 5.0 w/m^2 d. 10 w/m^2 e. 2.5 w/m^2

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

What is the measure of a change in an objects velocity?