Consider the circuits shown below: a V = 66 V battery is connected to R₁ = 40 2, R₂ = 35 02, R3 = 5 02, and R4 10 2. For the left-side circuit, what is the potential difference between points a and b? R₁ R₁ www a www www R3 R4 V b R₂ M The current. lah = 0 www R3 x Units A a b V R₂ ww www R4 The potential difference between the points b and a, V₁-Va= 17.6 For the right-side circuit, what is the magnitude of the current between points a and b? x Units V

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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.