MagneticForce

# MagneticForce - PHY124 Magnetic Force I Exp 4 Abstract The...

This preview shows pages 1–3. Sign up to view the full content.

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: PHY124 Magnetic Force I Exp. 4 Abstract The purpose of this laboratory is to measure the effects of a magnetic field on a current-carrying wire. In the lecture part of this class, we frequently consider a wire that appears to “float” in the air and thereby calculate the force on this wire as vector F = I vector L × vector B . Realistically, this is a quite unusual situation (since wires don’t float!). Instead, we will consider the effect of the magnetic force on a wire under tension. This is quite similar to the effect of gravity on a chain, resulting in a shape known as a “catenary curve”. By measuring the deflection of the wire, we’ll deduce the magnetic field it is placed in (the field of the earth itself). 1 Knowledge, Understanding, and Skills You should have a “hands-on” experience and ability with all the following: • How to use the Right Hand Rule to determine the direction of force on a current-carrying wire in a magnetic field. • The formula for magnetic force, vector F = I vector L × vector B . • Why there is a so-called “shunt” in your circuit and what it allows you to measure. • How to measure the position change with the microscope. • What is a reticule? • The derivation of the “catenary curve” equation. 2 Equipment • Power supply • Pulley and table clamp • Microscope with calibrated reticule • Viewing lamp • 50A Current shunt • Digital voltmeter • DPDT switch PHY124 Magnetic Force I Exp. 4 Figure 1: Here is a sketch of the lab setup.Figure 1: Here is a sketch of the lab setup....
View Full Document

## This note was uploaded on 02/19/2012 for the course PHY MPDESHPAND taught by Professor Abhaydeshpande during the Spring '09 term at SUNY Stony Brook.

### Page1 / 5

MagneticForce - PHY124 Magnetic Force I Exp 4 Abstract The...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online