Lightbulb A is rated at 120 V and 40 W for household applications. Lightbulb B is rated at 12 V and 40 W for automotiveapplications. (a) What is the current through each bulb?(b) What is the resistance of each bulb? (c) In one hour,how much charge passes through each bulb? (d) In onehour, how much energy does each bulb use? (e) Which bulbrequires larger diameter wires to connect its power sourceand 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.
Lightbulb A is rated at 120 V and 40 W for household applications. Lightbulb B is rated at 12 V and 40 W for automotive
applications. (a) What is the current through each bulb?
(b) What is the resistance of each bulb? (c) In one hour,
how much charge passes through each bulb? (d) In one
hour, how much energy does each bulb use? (e) Which bulb
requires larger diameter wires to connect its power source
and the bulb?
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