A Long Straight Cylindrical Shell Has an Inner Radius R_i

question 12

Multiple Choice

A long straight cylindrical shell has an inner radius R_i and an outer radius R_o.It carries a current i, uniformly distributed over its cross section.A wire is parallel to the cylinder axis, in the hollow region (r < R_i) .The magnetic field is zero everywhere outside the shell (r > R_o) .We conclude that the wire:

• A)is on the cylinder axis and carries current i in the same direction as the current in the shell
• B)may be anywhere in the hollow region but must be carrying current i in the direction opposite to that of the current in the shell
• C)may be anywhere in the hollow region but must be carrying current i in the same direction as the current in the shell
• D)is on the cylinder axis and carries current i in the direction opposite to that of the current in the shell
• E)does not carry any current

---

Definitions:

Research Paper

A detailed document reporting original research results, typically following a structured format including an introduction, literature review, methodology, results, and conclusion.

History Professor

An academic expert or educator who teaches and conducts research in history, analyzing past events and societies.

"A" Paper

A term used to denote a high-quality academic paper or essay that meets or exceeds the given criteria for excellence.

Mirror Neurons

Are brain cells that fire both when an individual acts and when the individual observes the same action performed by another, thus playing a role in learning and empathy.