A Rigid Circular Loop Has a Radius of 0

question 30

Short Answer

A rigid circular loop has a radius of 0.20 m and is in the xy-plane. A clockwise current I is carried by the loop, as shown. The magnitude of the magnetic moment of the loop is 0.75 A ∙ m². A uniform external magnetic field, B = 0.20 T in the positive x-direction, is present.
(a) What is the current in the loop?
(b) Find the magnitude of the magnetic torque exerted on the loop.
(c) If the loop is released from rest, in what direction will points a and c initially move?

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Definitions:

4%

An interest rate or percentage representing a part of a whole, especially in the context of financial rates.

C$ Per US$

The exchange rate determining how much Canadian dollars (C$) you can exchange for one US dollar (US$).

Exchange Rate

The financial value of one currency in the context of another for the purpose of exchange.

C$0.005

Represents a monetary value of five one-thousandths of a Canadian dollar.