WebFeb 20, 2024 · Find the current in a long straight wire that would produce a magnetic field twice the strength of the Earth’s at a distance of 5.0 cm from the wire. Strategy: The Earth’s field is about 5.0 × 10 − 5 T, and so here B due to the wire is taken to be 1.0 × 10 − 4 T. WebThe magnetic field strength is directly proportional to the current density. The magnetic field strength at a point is inversely proportional to the distance of that point from the current carrying wire. The magnetic field exists around the wire until the flow of current is abandoned. Magnetic lines of force around a current carrying conductor.

What is Faraday

WebThe direction of the curled fingers represents the direction of the magnetic field around the wire For example, if the current is travelling vertically upwards, the magnetic field lines will be directed anticlockwise, as seen from directly above the wire ... On diagram 2, draw arrows, one in each case, to show the direction of: The magnetic ... WebThe magnetic field lines around a long wire which carries an electric current form concentric circles around the wire. The direction of the magnetic field is perpendicular to the wire and is in the direction the fingers of your right … gree heater control

PT-Level High-Sensitivity Magnetic Sensor with Amorphous Wire

WebTo produce a magnetic field that points into the page at point P, we need the magnetic field due to the wire to curl in the opposite direction to the magnetic field due to the pipe. Therefore, the current in the wire should be counterclockwise when viewed from point P, or clockwise when viewed from the opposite side of the pipe. WebThe formula, B=u0I/2piR, describes the magnetic field B at a distance R from a straight wire carrying current I. u0= 4π*10-7 N/A2 and is called the permeability of free space. Magnetic field is in the units of Tesla (T) and has direction. The field lines "curl" around the wire on a plane perpendicular to the wire as shown below. WebHow is the magnetic field different around the straight-current carrying wire approximation in each case? Considering that each small part of the loop could be thought of as a small current-carrying wire, is there a connection between the magnetic field caused by each small portion of wire and the magnetic field we measure in the center of the loop, for … gree heater mode