viernes, 9 de junio de 2017

EXERCISES
Page 131.
 
3.- POWER SOURCE: It is a component of electric circuits in which the eleement feeds the circuit with the electrical energy needed to move the electrons.
CONDUCTOR: It is a component of electric circuits in which the elements transport the electric current from the power sources to the load devices.
LOAD DEVICE: It is a component of electric circuits in which the elements contained, receive the electrical energy from the power sources. It includes: motors, lamps, resistors, etc

4.- They are: power sources, load devices, conductors and control ande protection elements.

5.-  Copper and gold

6.-  A) The resistance is of 30 OHMS.
      B) The value of the resistor in the inicial circuit is of 15 OHMS.

7.-  If lamp 1 blows in circuit number 1, it will interrupt the circuit.













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