*Question*
Q: The creation of a voltage across a current-carrying conductor by a magnetic field is known as what? Read this paragraph and choose the correct option from the provided answers: 22.6 The Hall Effect We have seen effects of a magnetic field on free-moving charges. The magnetic field also affects charges moving in a conductor. One result is the Hall effect, which has important implications and applications. Figure 22.27 shows what happens to charges moving through a conductor in a magnetic field. The field is perpendicular to the electron drift velocity and to the width of the conductor. Note that conventional current is to the right in both parts of the figure. In part (a), electrons carry the current and move to the left. In part (b), positive charges carry the current and move to the right. Moving electrons feel a magnetic force toward one side of the conductor, leaving a net positive charge on the other side. This separation of charge creates a voltage , known as the Hall emf, across the conductor. The creation of a voltage across a current-carrying conductor by a magnetic field is known as the Hall effect, after Edwin Hall, the American physicist who discovered it in 1879. Choices: - off effect - newton effect - show effect - hall effect A:
**Answer**
hall effect

*Question*
Q: What is the female reproductive structure of a flower called? Read this paragraph and choose the correct option from the provided answers: The pistil is the female reproductive structure of a flower. It consists of a stigma, style, and ovary. The stigma is raised and sticky to help it catch pollen. The style supports the stigma and connects it to the ovary, which contains the egg. Petals attract pollinators to the flower. Petals are often brightly colored so pollinators will notice them. Choices: - the stamen - the pollinator - the stigma - the pistil A:
**Answer**
the pistil

*Question*
Q: What bonds result from the overlap of atomic orbitals? Read this paragraph and choose the correct option from the provided answers: Covalent bonds result from the overlap of atomic orbitals. Choices: - valent - hydrogen - metallic - covalents A:
**Answer**
covalents

*Question*
Q: During what in the small intestine do rings of smooth muscle repeatedly contract and then relax? Read this paragraph and choose the correct option from the provided answers: Mechanical Digestion in the Small Intestine The movement of intestinal smooth muscles includes both segmentation and a form of peristalsis called migrating motility complexes. The kind of peristaltic mixing waves seen in the stomach are not observed here. If you could see into the small intestine when it was going through segmentation, it would look as if the contents were being shoved incrementally back and forth, as the rings of smooth muscle repeatedly contract and then relax. Segmentation in the small intestine does not force chyme through the tract. Instead, it combines the chyme with digestive juices and pushes food particles against the mucosa to be absorbed. The duodenum is where the most rapid segmentation occurs, at a rate of about 12 times per minute. In the ileum, segmentations are only about eight times per minute (Figure 23.20). Choices: - mitosis - contraction - compression - segmentation A:
**Answer**
segmentation