Published January 2010 | Version v1
Journal article Metadata-only

An ultra-capacitor-based current source for magnetic field demonstration

Creators

  • 1. Friedrich-Alexander-Universitaet Erlangen-Nuernberg, Physikalisches Institut, Didaktik der Physik, Staudtstrasse 7, 91058 Erlangen (Germany)

Description

An ultra-capacitor in parallel with the output of a dc power supply reduces the source resistance and yields an electrical current of up to 900A through a low resistance load. The magnetic field of wires is made visible with iron filings over a large area. (letters and comments)

Availability note (English)

Available from http://dx.doi.org/10.1088/0143-0807/31/1/L03

Additional details

Identifiers

DOI
10.1088/0143-0807/31/1/L03;
PII
S0143-0807(10)34675-7;

Publishing Information

Journal Title
European Journal of Physics
Journal Volume
31
Journal Issue
1
Journal Page Range
p. L9-L12
ISSN
0143-0807
CODEN
EJPHD4

INIS

Country of Publication
United Kingdom
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
41047777
Subject category
S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS;
Descriptors DEI
CAPACITORS; ELECTRIC CURRENTS; IRON; MAGNETIC FIELDS; WIRES
Descriptors DEC
CURRENTS; ELECTRICAL EQUIPMENT; ELEMENTS; EQUIPMENT; METALS; TRANSITION ELEMENTS