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If three resistors draw currents of 1A, 2A, and 4A across an unknown voltage V, then by Ohm's law, the resistances are V/1, V/2, and V/4.
Place those three resistors in series, and the net resistance is V/1 + V/2 + V/4, which is 7V/4 ohms.
Place a resistance of 7V/4 ohms across a voltage source of V, and (again by Ohm's law) you get a current of V over 7V/4, or 4/7 A.
Note that you do not need to know V, because in the end, V cancels out.
What else can I help you with?
Is line to line voltage equal to line voltage?
Yes. By definition, a line-to-line voltage is indeed called a line voltage.For delta-connected, three-wire, systems comprise three line conductors. The line voltage is numerically equal to the phase voltage.For wye-connected, four-wire, systems comprise three line conductors and a neutral conductor. Any line-to-neutral voltage is called a phase voltage. The line voltage is 1.732 times the value of the phase voltage.
What is the difference between line to line voltage to line to ground voltage?
A three-phase, four-wire, system consists of three 'hot' conductors which are called line conductors, and a neutral conductor, sourced from a wye (or 'star') connected alternator or transformer. For this type of system, line voltages exist between line conductors, and phase voltages exist between any line conductor and the neutral conductor.A three-phase, three-wire, system consists of three 'hot' conductors which are called line conductors, sourced from a delta (or 'mesh') connected alternator or transformer. For this type of system, the phases are connected between lines. Line voltages exist between line conductors, and these are numerically equal to the phase voltages.
How are series circuits and parallel circuits the same?
They are not. They are connected differently, and the voltages and currents behave in different ways.
What is the Difference between single phase current and three phase current?
given a balance three phase, three wires system with star-connected load for which lime voltage is 230v and the impedance of each phase is (6+j8)ohm. find the line current and power absorbed by each phase.
Why is 3 phase power advantageous in higher voltage applications?
The 3 phase electric power is very common way of electric power transmission. Three circuit conductors carry three alternating currents the first conductor as reference the other currents are delayed in time for 1/3 and 2/3 of the cycle of the electrical currents.
What are materials that allow electrical currents to flow them are called?
Materials that allow electrical currents to flow through them are called conductors. Examples of good conductors include metals such as copper, silver, and aluminum.
What is the function of wires in transmission line?
Each of the three conductors of an electricity transmission system are termed 'line conductors', and there is a potential difference between each pair, called a 'line voltage'. The conductors themselves carry load currents called 'line currents'.
What group of metals are the best conductors of heat and electric current?
all metals are good conductors of heat and electric currents
Where do you find magnetic fields?
Near magnets. This includes conductors that carry electrical currents.
What is the difference between Load Current Line Current and Phase Current?
A load current is a current drawn by an electrical load. In other words, it is the current flowing from the source to the load.For a single-phase system, a line current is a current flowing through the line, or 'hot', conductor, while the current through the neutral conductor is called the neutral current.For a three-phase system, the three 'hot' conductors between the load and the source are called 'lines' and, so, the currents passing through them are called 'line currents'. For a three-phase system, loads are either connected between line conductors (delta-connected system) or between each line and the neutral (star- or wye-connected system), and represent the phases -so the currents passing through the loads are called 'phase currents'.For a balanced three-phase system, the line current is 1.732 times the value of a phase current, where the phases (loads) are connected in delta. For phases (loads) connected in star (or 'wye') the line current is numerically-equal to the phase currents.
Why squirrel cage rotor is also known as short circuited rotor?
A squirrel-cage rotor resembles a hamster or gerbil exercise wheel, and consists of a pair of ring-shaped conductors, connected together with numerous bar-shaped conductors. These bars are termed 'active conductors' because it is into these that voltages are induced by the machine's rotating magnetic field. The resulting currents circulate along the bars and return via the ring-shaped conductors which act to interconnect, or short-circuit, the common ends of the bar conductors.
Is line to line voltage equal to line voltage?
Yes. By definition, a line-to-line voltage is indeed called a line voltage.For delta-connected, three-wire, systems comprise three line conductors. The line voltage is numerically equal to the phase voltage.For wye-connected, four-wire, systems comprise three line conductors and a neutral conductor. Any line-to-neutral voltage is called a phase voltage. The line voltage is 1.732 times the value of the phase voltage.
Why are super cooled metals good conductors?
Super cooled metals are good conductors because their super cooled properties allow them to conduct electric currents without resistance. This means no loss of energy.
Under what conditions is the sum of the currents zero in star connected load?
yes
What is the relationship between the currents between two resistors connected in series?
He was eating my pussie
What is the difference between line to line voltage to line to ground voltage?
A three-phase, four-wire, system consists of three 'hot' conductors which are called line conductors, and a neutral conductor, sourced from a wye (or 'star') connected alternator or transformer. For this type of system, line voltages exist between line conductors, and phase voltages exist between any line conductor and the neutral conductor.A three-phase, three-wire, system consists of three 'hot' conductors which are called line conductors, sourced from a delta (or 'mesh') connected alternator or transformer. For this type of system, the phases are connected between lines. Line voltages exist between line conductors, and these are numerically equal to the phase voltages.
What is difference between line current and phase current?
A phase current is the current passing through a phase, whereas a line current is the current flowing through a line.In the case of a balanced delta-connected load, IL = 1.732 IP. In the case of a balanced star-connected load, IL = IP.For unbalanced loads, these relationships don't hold true, and must be individually calculated.
