EFFECT OF CAPACITY. 



103 



angles to each other will be, respectively, R, the resistance of 

 the circuit, and n __ v due to the capacity, since 



total voltage 



E 



I 



charging current 2 * n KE 2 * nK 

 The resultant of these components representing the total 



2 



impedance of the circuit = y / / 1 V 



\2 n' 



The results now obtained are illustrated in the following 

 experiments : 



EXPERIMENT XVII. DETERMINATION OF THE EFFECT OF 

 A CONDENSER UPON THE PHASE RELATIONS IN A CIRCUIT. 



DIAGRAM OF CONNECTIONS. 



R 

 C 

 A 



V> 

 y 



FIG. 46. 



Source of alternating current. 



Non-inductive resistance. 



Condenser. 



Ammeter. 



Voltmeter for reading voltage across condenser. 



Voltmeter for reading voltage non-inductive 



resistance. 



V 3 Voltmeter for reading total voltage of circuit. 

 Instructions. Connect in series to the source of supply a 

 condenser or other form of capacity, a non -inductive 

 resistance, ammeter, and switch. 



Connect voltmeters, or a single voltmeter with 3-way 

 switch, to read respectively the voltage across the capacity, 

 resistance, and total circuit. 



For several values of the current obtained by variation 

 of the resistance R take readings on the voltmeters and 

 ammeter. 



