How can a magnetic feild be used to generate an electric current

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 temperature in degrees celsius of a substance with a tempature of 49k

What is the speed of an object at a given moment?