When a Potential Difference Is Applied Across a Piece of Wire

question 66

Multiple Choice

When a potential difference is applied across a piece of wire made of metal A, a $5.0 - \mathrm { mA }$ current flows. If the metal-A wire is replaced with a wire made of metal B having twice the diameter of the metal-A wire, how much current will flow through the metal-B wire? The lengths of both wires are the same, and the voltage difference remains unchanged. The resistivity of metal A is 1.68 × 10^-8 ? ? m, and the resistivity of metal B is 1.59 × 10^-8 ? ? m.

• A)21 mA
• B)19 mA
• C)11 mA
• D)5.3 mA

---

Definitions:

Implicit Prejudiced Attitudes

Implicit prejudiced attitudes refer to unconsciously held prejudiced views towards certain groups or individuals which can influence behavior and decision-making without explicit awareness.

Internal

Pertaining to or situated within the inside of something; often relates to internal processes or features.

External

Relating to, existing on, or connected with the outside or an outer part.

Prejudiced People

Individuals who hold preconceived opinions or judgments about others without sufficient knowledge, often based on stereotypes.