A bulb in a flashlight carries a current of 0.3 A when it is connected to a 1.5 V battery. Throughout this problem you may assume the bulb follows Ohm’s Law. (a) What is the resistance of the bulb? (b) If the battery becomes weak over time and the voltage of the battery drops to 1.25 V, what will be the current flowing through the bulb?
Ohm's law
Ohm’s law is a prominent concept in physics and electronics. It gives the relation between the current and the voltage. It is used to analyze and construct electrical circuits. Ohm's law states that the voltage across a conductor is directly proportional to the current flowing through it.
Path of Least Resistance
In a series of alternate pathways, the direction of least resistance is the actual or metaphorical route that offers the least resistance to forwarding motion by a given individual or body.
A bulb in a flashlight carries a current of 0.3 A when it is connected to a 1.5 V battery. Throughout this problem you may assume the bulb follows Ohm’s Law.
(a) What is the resistance of the bulb?
(b) If the battery becomes weak over time and the voltage of the battery drops to 1.25 V, what will be the current flowing through the bulb?
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