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Fundamental Ideas and Definitions
Sources of E M F
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A.C. resistance aerial alternating current ammeter amperes amplification amplitude amplitude modulated anode circuit anode current anode load anode volts applied bias Calculate called capacitance carrier cathode charge circuit diagrams circuit of Fig coil component condenser conductor connected constant copper coupling current flows curve diode direction distortion dry cell earth effect electrical electrolyte electrons experiment F region feed-back graph grid current grid detector grid volts H.T. battery half-cycles harmonic impedance increased inductance input instrument insulated internal resistance lamp LC circuit lines of force lMc/s magnet maximum metal method milliammeter modulation moving-coil mutual conductance needle negative Nichrome ohms oscillation output parallel pentode plate pole positive R.M.S. value radiation radio frequency ratio reactance receiver rectifier rejector resistor result rheostat screen shown in Fig shunt stage gain supply switch telephones tetrode transformer transmitter triode tuned circuit turns valve variable voltage voltmeter watts waves wire