A 75-W light bulb is turned on. It has an operating voltage of 120 V. (a) How much current flows through the bulb?                                 A (b) What is the resistance of the bulb?                                   Ω (c) How much energy is used each second?                             J each second

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A: Voltage, V = 120 VPower, P1 = 100 WPower, P2 = 60 W

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A:

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.