Https://cdstools. flipswitch. com/asset/media/861857 What quantity does the line with the question mark represent?

a. the amplitude of the wave
b. frequency of the wave
c. the wavelength of the wave
d. period of the wave

answer: option c. i.e. electric current flowing “downhill” from the negative electrode to the positive electrode in a battery

explanation:

the water analogy to the circuits define the pipes (water flows) to the electric current. now, we know that the electric current flows from the positive terminal to the circuit (as shown in the diagram attached).

hence, option c is the correct answer.

c. magnitude and direction

conservation of mass

mass before something happens = mass afterwards