## Principles of Electricity and Electromagnetism |

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Page 412

(12.17) This is a vector half again as great as that of the preceding case, rotating

in the same sense with the same

rotating magnetic field is that a piece of metal placed within it experiences a ...

(12.17) This is a vector half again as great as that of the preceding case, rotating

in the same sense with the same

**angular velocity**. The interesting property of arotating magnetic field is that a piece of metal placed within it experiences a ...

Page 414

If the field rotates with the

induced emf. is equal to w, doo/d0, which is also equal to the current in times the

...

If the field rotates with the

**angular velocity**w and the drum with an**angular****velocity**w!, d6/dt = a," – a = -2, where w, is the**angular velocity**of slip. Thus theinduced emf. is equal to w, doo/d0, which is also equal to the current in times the

...

Page 415

I dt d() the field rotates with the

induced emf. is equal to w, doposab, which is also equal to the current in times

the ...

I dt d() the field rotates with the

**angular velocity**w and the drum with an**angular****velocity**w', d0/dt = a," – w = -q, where w, is the**angular velocity**of slip. Thus theinduced emf. is equal to w, doposab, which is also equal to the current in times

the ...

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alternating current alternating-current amplitude angle angular velocity anode antenna applied approximately armature assumed atom axis calculated capacity cathode centimeter characteristic circuit coefficient coil component condenser conducting conductor considered curl current flowing curve deflection density determined dielectric constant direct-current direction discharge displacement distance effective electric field electromotive force electrons electrostatic element energy equal equation ferromagnetic flux force frequency function galvanometer given grad grid hence hysteresis impedance induction integral ions known Laplace's equation linear load magnetic field magnetic moment magnitude maximum measured meter motor negative normal obtained ohms oscillations output parallel phase plane plate polarization positive potential difference potentiometer produced proportional quantity radiation radius ratio reactance region represents resistance resonant rotation Show shown in Fig solenoid solution substance surface temperature terminals theorem torque transformer tube unit vector voltage volts wave wire written zero