A Textbook in Electricity and Magnetism |
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Page 93
... temperatures , an electrical current will usually flow through the circuit ( Fig . 9.7 ) . This effect , Copper + T -Copper G Iron FIG . 9.7 . Millivolts Temperature FIG . 9.8 . discovered by Thomas J. Seebeck in 1826 , is called the ...
... temperatures , an electrical current will usually flow through the circuit ( Fig . 9.7 ) . This effect , Copper + T -Copper G Iron FIG . 9.7 . Millivolts Temperature FIG . 9.8 . discovered by Thomas J. Seebeck in 1826 , is called the ...
Page 94
... temperature , for they can measure radiant energy , electric current , and gas pressure . If radiant energy falls on a blackened junction of a thermocouple , the temperature of that junction will rise and the thermal emf pro- duced can ...
... temperature , for they can measure radiant energy , electric current , and gas pressure . If radiant energy falls on a blackened junction of a thermocouple , the temperature of that junction will rise and the thermal emf pro- duced can ...
Page 125
Harry C. Kelly. CHANGE OF RESISTANCE WITH TEMPERATURE Change of resistance with temperature 125 The resistance of a substance may depend upon the number of atomic collisions per unit time an electron encounters in traveling through the ...
Harry C. Kelly. CHANGE OF RESISTANCE WITH TEMPERATURE Change of resistance with temperature 125 The resistance of a substance may depend upon the number of atomic collisions per unit time an electron encounters in traveling through the ...
Contents
CHAPTER | 1 |
GRAVITATIONAL POTENTIAL | 16 |
ENERGY RELATIONS | 28 |
Copyright | |
19 other sections not shown
Common terms and phrases
acceleration ammeter Ampère's law amperes atom axis battery body Calculate called capacitance cathode cell centimeters charge Q circuit coil Compute condenser conductor connected Consider constant copper coulomb deflection density dielectric dielectric constant direction distance dynes E₁ earth effect electric field electrolyte electromagnetic electron electron volts electrostatic emitted equal equation equipotential ergs example field due field H filament flow flux frequency galvanometer Gauss's law given gram gravitational grid heat impedance induced emf ionization ions kinetic energy Kirchhoff's law lines of force magnetic field mass maximum measured metal method motion moving negative charge Ohm's law ohms parallel path plane plate current pole potential difference potential drop R₁ radius resistance resultant rotation self-inductance shown in Fig solenoid solution sphere surface temperature thermocouple torque tube unit vacuum vector velocity voltage voltmeter volts wave wire zero