## Principles of Electricity and Electromagnetism |

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Page 73

With what force per unit area do the plates of a parallel - plate condenser attract

one another if their

them is 100 volts assuming that the region between them has a dielectric

constant of ...

With what force per unit area do the plates of a parallel - plate condenser attract

one another if their

**separation**is 1 mm . and the potential difference betweenthem is 100 volts assuming that the region between them has a dielectric

constant of ...

Page 252

That is , the breakdown potential depends on the pressure and electrode

very useful relation , for if Vo is known for all pressures at a particular electrode ...

That is , the breakdown potential depends on the pressure and electrode

**separation**only through the product pd . This is known as Paschen ' s law . It is avery useful relation , for if Vo is known for all pressures at a particular electrode ...

Page 351

The electric moment of two equal and opposite charges is equal to the product of

the magnitude of either charge and their vector

quantity known as the magnetic pole can be introduced and defined by saying ...

The electric moment of two equal and opposite charges is equal to the product of

the magnitude of either charge and their vector

**separation**(– to +). By analogy aquantity known as the magnetic pole can be introduced and defined by saying ...

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angle applied approximately assumed atom axis becomes calculated capacity carrying cell characteristic charge circuit closed coil component condition conducting conductor connected considered constant curve density depends determined dielectric difference direction discharge discussion distance effective electric electrons element energy equal equation evident expression factor field flow flux force frequency function galvanometer given grid hence impedance important increases indicated induction integral ions known length limited linear load losses magnetic magnetic field magnitude maximum means measured mechanical metal meter method negative normal obtained oscillations parallel path period phase placed plate positive potential present produced proportional quantities radius ratio reduced region relation represents resistance respect result rotation seen separation Show shown simple solution space surface temperature terminals transformer tube unit vector volts volume wave wire written zero