Circuits:  A Bright Idea!

Today in class, we talked about electrical circuits and examined the effect of including two lamps in one circuit.
We found that when a circuit includes two lamps in series (one right after the other), both lamps need to be connected or neither light will turn on! This is because electricity is the flow of electrons, and if a light is not connected, the circuit is not complete and the electrons cannot flow. We also noticed that the lamps in series were dimmer than a single lamp alone; this is because the electrons have twice as many lights to turn on!

But when lamps are connected in parallel so that the electricity flows to both lamps at the same time, they are just as bright as one lamp by itself because both lamps are seeing the same amount of electricity. If a lamp in a parallel circuit is disconnected, the other lamp doesn’t change; in fact, a parallel circuit with one lamp disconnected is the same as a simple circuit with one light!


Circuitos: una idea brillante

 Hoy en clase conversamos sobre los circuitos eléctricos y examinamos el efecto de incluir dos lámparas en un circuito.

Descubrimos que cuando un circuito contiene dos lámparas en serie (una detrás de la otra), ambas lámparas deben estar conectadas o ninguna de ellas se prenderá. Esto sucede porque la electricidad es el flujo de electrones, y si una de las ampolletas no está conectada, el circuito no está complete y los electrones no pueden fluir. También notamos que las lámparas conectadas en serie brillaban menos que una lámpara sola; ésto es porque los electrones tienen que encender el doble de ampolletas.

Pero, cuando las lámparas son conectadas en paralelo, la electricidad fluye hacia ambas lámparas al mismo tiempo, y por lo tanto ambas brillan tanto como una sola lámpara porque a ambas les llega la misma cantidad de electricidad. Si una de las lámparas en un circuito en paralelo se desconecta, la otra sigue funcionando; de hecho, un circuito paralelo con una lámpara desconectada equivale a un circuito simple con solo una lámpara.

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