Principles of Electricity and Electromagnetism |
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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 resistance box . type of 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 resistance box . type of 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 ...
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Common terms and phrases
alternating current alternating-current ampere amplifier amplitude angle angular anode antenna applied approximately armature assumed atom axis calculated capacity cathode cell characteristic charge circuit coefficient coil component condenser conducting conductor considered constant curl current flowing curve deflection density determined dielectric dielectric constant direct-current direction dynamic resistance effective electric field electromagnetic electromotive force electrons electrostatic element energy equal equation flux force frequency function galvanometer grad harmonic hence impedance induction integral ions known length linear load magnetic field magnetic moment magnitude maximum measured meter negative obtained ohms oscillations output parallel phase plane plate current positive potential difference potentiometer quantities R₁ radiation radius ratio reactance region represents resistance resonant rotation scalar shown in Fig solution surface temperature terminals theorem torque transconductance triode tube unit vacuum tube vector velocity voltage volts wave wire written zero