Principles of Electricity and Electromagnetism |
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Page 16
... normal component of the electric field at the element . The outward normal component is reckoned as positive . If ds represents an element of the surface , the contribution to the sum made by this element is E ds cos 0 , where is the ...
... normal component of the electric field at the element . The outward normal component is reckoned as positive . If ds represents an element of the surface , the contribution to the sum made by this element is E ds cos 0 , where is the ...
Page 89
... normal to these axes . And in general the rate of flow of charge through an area ds whose normal makes an angle 0 with i , is i , ds cos or i , ds , where ds is the vector of length ds normal to the area . hypothetical closed surface is ...
... normal to these axes . And in general the rate of flow of charge through an area ds whose normal makes an angle 0 with i , is i , ds cos or i , ds , where ds is the vector of length ds normal to the area . hypothetical closed surface is ...
Page 366
... normal permeability is defined as the ratio of B to OH given by the normal magnetization curve . It is , of course , a function of H. The differential permeability is used to refer to the slope of this curve , dB / dH divided by μo ...
... normal permeability is defined as the ratio of B to OH given by the normal magnetization curve . It is , of course , a function of H. The differential permeability is used to refer to the slope of this curve , dB / dH divided by μo ...
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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 discharge effective electric field electromagnetic electromotive force electrons electrostatic element energy equal equation flux force frequency function galvanometer given grad grid hence impedance induction integral ions known Laplace's equation length linear load magnetic field magnetic moment magnitude maximum measured metal meter negative obtained ohms oscillations output parallel phase plate positive potential difference potential wave potentiometer produced proportional quantities R₁ radiation radius ratio reactance region represents resistance resonant rotation shown in Fig solenoid solution surface temperature terminals theorem torque tube unit V₁ vector velocity voltage volts wire written zero