A Bar (L = 80 Cm)moves on Two Frictionless Rails,as

question 60

Multiple Choice

A bar (L = 80 cm) moves on two frictionless rails,as shown,in a region where the magnetic field is uniform (B = 0.30 T) and into the paper.If v = 50 cm/s and R = 60 mΩ,what is the magnetic force on the moving bar?

• A)0.48 N to the right
• B)0.48 N to the left
• C)0.32 N to the left
• D)0.32 N to the right
• E)None of the above

---

Definitions:

Complexity-Extremity Effect

The bias where less complex schemas lead to more extreme judgments and evaluations.

Stereotypes

Fixed sets of characteristics that are attributed to all the members of a group; simplistic and rigid perceptions of members of one group that are widely shared by others.

Attribution Error

A cognitive bias that involves misattributing the causes of someone's behavior to their personality, rather than to situational factors.

Normative Expectations

The beliefs or standards considered normal within a specific culture or group, guiding behavior and influencing conformity.