4. Find the current in and potential difference across each of the resistors in the following circuits: a. a 2.0 and a 4.0 Q resistor wired in series with a 12 V source
b. a 2.0 Q and a 4.02 resistor wired in parallel with a 12 V source

Which of the following is a characteristic shared by both electron and light microscopes? a. they both employ the use of objective lenses. b. both microscopes require an internal camera to visualize the specimen. c. both microscopes have a resolving power of 0.01 nm. d. they both utilize white light to magnify the specimen.