Search our database of handpicked sites

Looking for a great physics site? We've tracked down the very best and checked them for accuracy. Just pick a topic, tell us your age and knowledge level and we'll do the rest.

You searched for “resistance”

We found 1 result on physics.org and 37 results in our database of sites

Search results on physics.org

What is electrical resistance?

Search results from our links database

Showing 1 - 10 of 37

Resistance (Applet)

Allows various configerations of resistances to be put together and their total resistance calculated.

Rating:

http://lectureonline.cl.msu.edu/~mmp/kap20/RR506a.htm

Resistance

The electrical resistance of a material is defined as the ratio of the voltage applied to the electric current which flows through it.

Rating:

http://hyperphysics.phy-astr.gsu.edu/hbase/electric/resis.html#c1

Electrical resistance

Good revision site aimed at UK A Level standard covering resistance, ohm's law, conductivity etc

Rating:

http://www.s-cool.co.uk/alevel/physics/resistance.html

Colour Coded Resistance Calculator

A simple program to help students calculate the resistance of a certain resistor. A very easy and simple site that works well and looks good.

Rating:

http://www.dannyg.com/examples/res2/resistor.htm

Any collection of batteries and resistances with two terminals is electrically equivalent to an ideal current source i in parallel with a single resistor r. The value of r is the same as that in the ...

Rating:

http://hyperphysics.phy-astr.gsu.edu/hbase/electric/norton.html#c1

Thevenin's Theorem

Any combination of batteries and resistances with two terminals can be replaced by a single voltage source e and a single series resistor r. The value of e is the open circuit voltage at the ...

Rating:

http://hyperphysics.phy-astr.gsu.edu/hbase/electric/thevenin.html#c1

Gustav Robert Kirchhoff

Gustav Robert Kirchhoff (1814 - 1887) was a physicist who made important contributions to the theory of electrical circuits. Kirchhoff's laws, announced in 1854, allow calculation of currents, ...

Rating:

http://www-history.mcs.st-and.ac.uk/history//Biographies/Kirchhoff.html