## Principles of Electricity and Electromagnetism |

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Page 277

Hence it is reasonable to analyze Ampere's results in terms of elementary

segments of a current-carrying circuit. Fio. 9.2. — Illustration of the vector

expression of Ampere's law. Such an element would be written i dl, where t is the

Hence it is reasonable to analyze Ampere's results in terms of elementary

segments of a current-carrying circuit. Fio. 9.2. — Illustration of the vector

expression of Ampere's law. Such an element would be written i dl, where t is the

**magnitude**of ...Page 411

at any point is constant in direction and proportional in

producing it. m If i is of the form i0 cos wt, B will be equal to Bo cos wt. The cosine

function may be written in terms of the exponential functions as (e'"1 + e~'"t)/2, ...

at any point is constant in direction and proportional in

**magnitude**to the currentproducing it. m If i is of the form i0 cos wt, B will be equal to Bo cos wt. The cosine

function may be written in terms of the exponential functions as (e'"1 + e~'"t)/2, ...

Page 587

Two vectors are said to be equal if they are equal both in direction and

point of vector B is placed at the terminal point of vector A. C, which is the sum of

these two, ...

Two vectors are said to be equal if they are equal both in direction and

**magnitude**. The process of addition of vectors is denned as follows: The initialpoint of vector B is placed at the terminal point of vector A. C, which is the sum of

these two, ...

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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 hysteresis impedance induction integral ions known Laplace's equation length linear load magnetic field magnetic induction magnitude maximum measured metal meter negative normal obtained ohms oscillations output parallel phase plane plate polarization positive potential difference potential wave potentiometer produced proportional quantities radiation radius ratio reactance region represents resistance resonant rotation Show shown in Fig solenoid solution surface temperature terminals theorem torque tube unit vector velocity voltage volts wire written zero