A steady current of I flows in the same 00 N turns N turns direction around each coil of the Helmholtz coils shown in the 9V battery figure. Write how the magnitude of the magnetic field at the center of the Helmholtz coils depends on the number of turns of the coils micro ammeter power supply N and the current I. (directly or inversely proportional)

A steady current of I flows in the same 00 N turns N turns direction around each coil of the Helmholtz coils shown in the 9V battery figure. Write how the magnitude of the magnetic field at the center of the Helmholtz coils depends on the number of turns of the coils micro ammeter power supply N and the current I. (directly or inversely proportional)

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter13: Electromagnetic Induction

Section: Chapter Questions

Problem 13.1CYU: Chek sour Understanding A closely und coil has a radius of 4.0 cm. 50 turns, and a total ieslstancc...

See similar textbooks

Similar questions

Two flat, circular coils, each with a radius R and wound with JV turns, ace mounted along the same axis so that they are parallel a distance d apart. What is the magnetic field at the midpoint of the common axis if a current I flows in the same direction through each coil?
12.7 Check Your Understanding What is the ratio of the magnetic field produced from using a finite formula over the infinite approximation for an angle of (a) 85°? (b) 89°? The solenoid has 1000 mins in 50 cm with a current of 1.0 A flowing through the coils
What is the direction of the magnetic field that produces the magnetic force on a positive charge as shown in each of the three cases, assuming B is perpendicular to v?
Check Your Understanding Using Example 12.1, at what distance would P have to be to measure a magnetic field half of tire given answer?
12.3 Check Your Understanding Using Example 12.3, keeping the currents the same in wires 1 and 3, what should the current be in wire 2 to counteract the magnetic fields horn wires 1 and 3 so that there is no net magnetic field at point P?
Is B constant in magnitude for points that lie on a magnetic field line?
The current loop shown in the accompanying figure lies in the plane of the page, as does the magnetic field. Determine the net force and the net torque on the loop if I=10and B=1.5T .
Check Your Understanding Repeat the previous problem with the magnetic field in the x-direction rather than in the z-direction. Check your answers with RHR-1.
Check Your Understanding Consider using Ampere’s law to calculate the magnetic fields of a finite straight wire and of a circular loop of wire. Why is it not useful for these calculation?
What is the magnetic field at P due to the current I in the wire shown?
An electron of kinetic energy 2000 eV passes between parallel plates that are 1.0 an apart and kept at a potential difference of 300 V. What is the strength of the uniform magnetic field B that will allow the electron to travel undeflected through the plates? Assume E and B are perpendicular.
Check Your Understanding A uniform magnetic field of magnitude 1.5 T is directed horizontally from west to east, (a) What is the magnetic force on a proton at the instant when it is moving vertically downward in the field with a speed of 4 x 107 m/s? (b) Compare this force with the weight w of a proton.