OCR Text |
Show J I RADIO PRIMER ! I WATT The unit of electric power equal to the work done by a pressure of one ampere upde u current of "in , volt. A horsepower is equal to 74 6 watts. BTATOR That part of a variomct- I ; er or variocoupler which Is station-j ary. It usually holds the primary .windings of the funlnx inductance. IMPEDANCE Resistance offered ' J by a wir to a current flowing through it, due tO the pressure of an opposed electrical flow This la Irrespective of the actual resistance of the conductor In ohm... Impedance, instead of being a resistance, is the result of a reaction. Rotor That part of a variometer or varloi oupler which is made to revolve re-volve so as to vary Its position in relation re-lation to the stator it usually holds the secondary windings which, on re- ' VOlvthg, vary the amount f their in- i ductanee from the primary. Tuning Is accomolised by the revolution of ( this part of tho inductance. oo |