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Table of contents

Chapter 10: part 2

Energy in the News

OhmÕs Law

Physical Meaning

Toaster

Resistive Heating

Electrical Energy: Work or Heat

Superconductivity

Simple Circuits

Meissner Effect

Series and Parallel Circuits

Batteries: Series and Parallel

Typical Household Circuit

Prices of Energy

Payback Time on Energy Efficiency

Quote from Prizewinning Engineer

L.E.D.s

L.E.D.s How They Work

Lighting Whales with LEDs

Common Uses of LEDs

Fuel Cells

Greenhouse Gas Emissions

Cost for Fuel Cells :Medium Term

Long Term: Costs for Fuel Cells

Types of Fuel Cells

Fuel Cell: Central Park, New York

Fuel Cell Powered Bus

Fuel Cells: The Future

Author: W

E-mail: menke@ldeo.columbia.edu