Strength of B due to I in straight wire:
B is magnetic field, I is current, r is wire length, and ?
is
So current is:
Same equation is used to find the magnetic field
Problem 20.40 You want to produce a magnetic field of magnitude 5.50 x10^-4T at a distance...
Suppose you want to produce a strong magnetic field that is constant in magnitude and direction in a region of space. Which one of the following would you choose to produce this field? The region surrounding a long, straight, current-carrying wire. The region surrounding a loop of a current-carrying wire. The exterior region of a long current-carrying solenoid. The interior region of a long current-carrying solenoid.
Short answer questions: a. The magnitude of the magnetic field at a distance R from a long straight wire is equal to B. At what distance will the magnitude of the magnetic field be equal to 3B? b. Two long parallel wires carry equal but opposite currents. Are there any points in space where the total magnetic field is equal to zero? If so, where? If not, why not? c. A simple loop circuit contains two sources, a resistive wire,...
What is the magnitude of the magnetic field (in nt) at a distance of 12 m from a long straight wire which carries a current of 2 A? (in units of nT or nanoteslas) Submit Answer Tries 0/2
The magnetic field at the center of a 1.30 cm-diameter loop is 2.60 mT. part a) what is the current in the loop? part b) A long straight wire carries the same current you found in part a. At what distance from the wire is the magnetic field 2.60 mT?
The magnetic field at the center of a 1.5-cm-diameter loop is 2.7mT. Part A: What is the current in the loop? Part B: A long straight wire carries the same current you found in part A. At what distance from the wire is the magnetic field 2.7mT? Show work please
The magnetic field at the center of a 1.2-cm-diameter loop is 2.8 mT . What is the current in the loop? A long straight wire carries the same current you found in part a. At what distance from the wire is the magnetic field 2.8 mT ?
The magnetic field at the center of a 0.90-cm-diameter loop is 2.3 mT . A) What is the current in the loop? B) A long straight wire carries the same current you found in part a. At what distance from the wire is the magnetic field 2.3 mT ?
If the magnetic field due to a long, straight current-carrying wire has a magnitude B at a distance R from the wire’s center, how far away must you be (in terms of R) for the magnetic field to decrease to B/3?
what size current is needed to produce a magnetic field of 3.25*10-4 T a distance of 75.0CM from a long straight wire
The magnetic field at the center of a 1.0-cm-diameter loop is 3.0 mT 1) What is the current in the loop? 2) A long straight wire carries the same current you found in part a. At what distance from the wire is the magnetic field 3.0 mT ?