A voltmeter used in an experiment to find the emf of a cell was found to have a calibration reading error whereby every reading was 0.22V higha) what is the name given to this type of error?b) how, if at all, would this have affected the value obtained for the emf of the cell?

Which simple machine is not part of this compound machine? a. lever b. pulley c. inclined plane d. wheel and axle

Science and technology are interdependent. advances in one lead to advances in the other. give an example of this phenomenon.

Modern physics a photon emitted from an excited hydrogen atom has an energy of 3.02 electron volts. which electron energy-level transition would produce this photon? a. n=1 to n=6 b. n=2 to n=6 c. n=6 to n=1 d. n=6 to n=2 i chose b but the correct answer is d can someone tell me why? and what's the difference?