3 years ago

A 1.5V battery is connected to a small light bulb with a resistance of 3.5 what is the current in the bulb?

1 answer:

5 0

Technically, we don't have the information needed to calculate the current,
because you haven't mentioned the units of the 3.5 .

Since the 3.5 is a resistance, we strongly suspect ... and we'll therefore
assume ... that the 3.5 has the units of ohms. Then . . .

Current = (voltage) / (resistance) = (1.5/3.5) = <em>3/7 of an Ampere</em>.

(429 mA, rounded)

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