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Sagot :
Circuit you ultimately want to measure the power dissipation of the 2.0 is The sum of the voltage drops across each resistor is zero.
Apply the Kirchhoff’s Voltage law to the above two loops.
For Loop 1
2 - i1 + 2i2 - 4 - i1 = 0
i2 - i1 = 2
For loop 2
4 - 2i2 + i3 - 4 + i3 = 0
i3 = i2
The sum of the voltage drops across each resistor is zero. The sign of the higher potential is taken as positive and the sign of the lower potential is taken as negative.
The sum of the voltage drops across each resistor is zero. The sign of the higher potential is taken as positive and the sign of the lower potential is taken as negative.
The voltage drop in an electrical circuit is the reduction in electrical potential along the current's course. Voltage drops across conductors, contacts, and connectors are undesirable because they result in energy loss from the source's internal resistance, conductors, and contacts. The amount of power available to be transformed in that load to another useable form of energy is inversely correlated with the voltage drop across the electrical load.
For instance, an electric space heater might have a resistance of ten ohms, whereas the wires that power it might have a resistance of only two ohms, or about 2% of the circuit's total resistance. This indicates that 2% or more of the supplied voltage is wasted in the wire itself. Voltage drops could be too great.
Learn more about voltage drops here:
https://brainly.com/question/28982001
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