Principles of Electricity and Electromagnetism |
From inside the book
Results 1-3 of 91
Page 121
... resistances in this range can be constructed by sputtering or evaporating thin metallic layers on long quartz or glass rods and placing them in an evacuated container . 4.12 . - Plug type of resistance box . Variable Resistances ...
... resistances in this range can be constructed by sputtering or evaporating thin metallic layers on long quartz or glass rods and placing them in an evacuated container . 4.12 . - Plug type of resistance box . Variable Resistances ...
Page 135
... resistance of 7 ohms , a battery of 3 ohms internal resistance , and an emf . of 15 volts . Calculate the current flowing and the rate of generation of heat in the separate elements . 7. A wire of uniform resistance r per unit length is ...
... resistance of 7 ohms , a battery of 3 ohms internal resistance , and an emf . of 15 volts . Calculate the current flowing and the rate of generation of heat in the separate elements . 7. A wire of uniform resistance r per unit length is ...
Page 136
... resistance between the terminals of a megohm resistance box in order that it shall not be in error by more than 1 per cent ? 16. How low must the junction resistances of a 0.1 - ohm shunt be in order that the total resistance the shunt ...
... resistance between the terminals of a megohm resistance box in order that it shall not be in error by more than 1 per cent ? 16. How low must the junction resistances of a 0.1 - ohm shunt be in order that the total resistance the shunt ...
Other editions - View all
Common terms and phrases
alternating current alternating-current amplitude angle angular velocity anode applied approximately armature assumed atom axis calculated capacity cathode cell centimeter characteristic charge q circuit coefficient coil component condenser conduction conductor considered copper current density current flowing curve cylinder deflection determined dielectric constant direct-current discharge distance effective electric field electromotive force electrons electrostatic element energy equal equation ferromagnetic filament flux force frequency function galvanometer given grad grid hence hysteresis impedance induction insulating integral known Laplace's equation linear load magnetic field magnetic moment magnitude maximum measured medium metal meter molecules negative normal obtained ohms parallel plate polarization potential difference potential wave potentiometer produced proportional quantity R₁ radius ratio rectifier region represents resistance rotation Show shown in Fig solenoid solution substance surface temperature terminals theorem torque tube V₁ vector voltage volts wire written zero