## Principles of Electricity and Electromagnetism |

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Page 53

It is to be noted that the deflection involves the square of V and

same direction whether Vis positive or negative . Thus the instrument may be

used to measure alternating potentials . The chief advantage of an electrostatic ...

It is to be noted that the deflection involves the square of V and

**hence**is in thesame direction whether Vis positive or negative . Thus the instrument may be

used to measure alternating potentials . The chief advantage of an electrostatic ...

Page 218

of in is also proportional to the average of the positive values of eg . Thus this

arrangement measures the average positive - grid potential . If the meter

terminals ...

**Hence**the meter deflection which is proportional to the direct - current componentof in is also proportional to the average of the positive values of eg . Thus this

arrangement measures the average positive - grid potential . If the meter

terminals ...

Page 431

Let io be the effective current at resonance and i the effective current for some

arbitrary value of the reactance X . Then V2 2 = and = R2 + X2 V2

is the resonance setting of the condenser and the potential applied to the circuit

is ...

Let io be the effective current at resonance and i the effective current for some

arbitrary value of the reactance X . Then V2 2 = and = R2 + X2 V2

**hence**Here C ,is the resonance setting of the condenser and the potential applied to the circuit

is ...

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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