The emf value of an emf source with internal resistance r = 2 Ω is ε = 12 V. The source is connected to a resistor whose resistance is R1 = 4 Ω and the amount of energy converted into heat in this resistor is P1. If P2 is the amount of energy converted into heat when the same source resistor is connected to a resistor with R2 = 10 Ω, find the ratio P1/P2.
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.
2) The emf value of an emf source with internal resistance r = 2 Ω is ε = 12 V. The source is connected to a resistor whose resistance is R1 = 4 Ω and the amount of energy converted into heat in this resistor is P1. If P2 is the amount of energy converted into heat when the same source resistor is connected to a resistor with R2 = 10 Ω, find the ratio P1/P2.
Step by step
Solved in 2 steps
