Attached is a figure that shows a source (a battery) with emf = Ɛ = 12V and internal resistance of 2 Ω . We add another 4 Ω resistor to the battery, forming a complete circuit . What are the voltmeter and ammeter readings and I ? Note : The ideal ammeter has zero resistance, so the total resistance external to the source is R = 4 Ω. Where the current through the circuit aa’b’b is then
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.
Attached is a figure that shows a source (a battery) with emf = Ɛ = 12V and
internal resistance of 2 Ω . We add another 4 Ω resistor to the battery, forming a complete circuit . What are the voltmeter and ammeter readings and I ?
Note : The ideal ammeter has zero resistance, so the total resistance external to the
source is R = 4 Ω. Where the current through the circuit aa’b’b is then
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