Eight lamps are always connected in parallel as shown in the Figure. (a) If the set is connected to a 120V source, what is the current through each lamp whether each internal resistance of 1.8 kohm? (b) Determine the total resistance of the network. (c) Find out the power dissipated in each lamp. (d) If a light bulb burns out (ie opens the filament), what is the effect on the remaining lamps? (e) Compare the parallel arrangement of a figure with a series arrangement. what are the relatives advantages and disadvantages of parallel system compared to series arrangement?
Eight lamps are always connected in parallel as shown in the Figure.
(a) If the set is connected to a 120V source, what is the current through each
lamp whether each internal resistance of 1.8 kohm?
(b) Determine the total resistance of the network.
(c) Find out the power dissipated in each lamp.
(d) If a light bulb burns out (ie opens the filament), what is the effect on the
remaining lamps?
(e) Compare the parallel arrangement of a figure with a series arrangement. what are the relatives
advantages and disadvantages of parallel system compared to series arrangement?
or
Oito lâmpadas sempre estão ligadas em paralelo como mostrado na Figura.
(a) Se o conjunto está ligado a uma fonte de 120V, qual é a corrente através de cada
lâmpada se cada uma resistência interna de 1,8 kohm?
(b) Determinar a resistência total da rede.
(c) Descubra a potência dissipada em cada lâmpada.
(d) Se uma lâmpada queima fora (ou seja, abre o filamento), qual é o efeito sobre as
lâmpadas restantes?
(e) Compare o arranjo paralelo de figura com um arranjo em série. Quais são as relativas
vantagens e desvantagens do sistema paralelo em comparação com o arranjo em série?
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