A Coil of 150 Turns of Wire Is in the Form

question 58

Multiple Choice

A coil of 150 turns of wire is in the form of a circle of diameter 7.5 cm,and sits in the center of a dipole magnet that produces a uniform magnetic field of strength 1.5 T.The torque on the coil has a maximum value of 0.25 Nm.What is the current in the coils?

• A) 9.4 A
• B) 200 mA
• C) 4.7 mA
• D) 63 mA
• E) 94 mA

---

Definitions:

Motivation

The psychological process that gives behavior purpose and direction.

Prejudices

Biased opinions or feelings against an individual or group without sufficient justification.

Communicative Problems

Difficulties or barriers encountered during the exchange of information between individuals.

Ethnicity

A category of people who identify with each other based on common ancestral, social, cultural or national experiences.