(a) Number Units (b) Number Units

College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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At a certain location, Earth's magnetic field of 52 µT is horizontal and directed due north. Suppose the net field is zero exactly 8.3 cm
above a long, straight, horizontal wire that carries a constant current. What are (a) the magnitude of the current and (b) the angle
between the current direction and due north?
(a) Number
Units
(b) Number
Units
Transcribed Image Text:At a certain location, Earth's magnetic field of 52 µT is horizontal and directed due north. Suppose the net field is zero exactly 8.3 cm above a long, straight, horizontal wire that carries a constant current. What are (a) the magnitude of the current and (b) the angle between the current direction and due north? (a) Number Units (b) Number Units
Expert Solution
Step 1

Given :-

Earth's magnetic field = 52μT

r = 8.3 cm

Solution -

As we know the magnetic field due to a wire carrying current is given by :

B = μ0I2πr

Therefore 

Bearthμ0I2πr

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