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Three resistors having a value of 10 omes each are connected in series to a 300 volts power source what is the total resistance of this circit?
Wiki User
∙ 10y ago
Three resistors having a value of 10 ohms each, when connected in series, have
a total effective value of 30 ohms, even if they're wrapped in tissue, stuffed into
a box, and stored in the back of your sock drawer.
What, if anything, they're connected to makes no difference.
If you take the series string of three resistors out of the box and connect it to
the terminals of a 300-volts power source, then the string will conduct a current
of 10 Amperes. Each resistor will dissipate 1,000 watts and heat rapidly, until the
first one either melts or explodes, whereupon the series circuit will open and the
flow of current will cease.
Wiki User
∙ 10y ago
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What is the resulting total resistance if two resistors having 5 and 10 ohms resistance are connected in parallel?
3.333 ohmsHow do we calculate the answer?It is calculated from the "Resistors In Parallel Connection Law" which is:1 / RTOTAL = 1 / R1 + 1 / R2In this case:R1 = 5 and R2 = 10So:1 / RTOTAL = 1/5 + 1/10 = 0.2 + 0.1 = 0.3So:RTOTAL = 1 / 0.3 = 3.333======================================For any number of resistors in parallel . . .Total effective resistance = 1/(1/A + 1/B + 1/C + 1/D + . . . . .)(If you're working with resistor combinations, then you're supposed to know this formula.)If there are only two resistors in parallel, and you use the same formula and simplify it,the total effective resistance turns out to be (A)x(B)/(A + B) .(Just say to yourself "the product over the sum" and you'll remember it.)When the two resistors are 5 ohms and 10 ohms, the total effective resistance is:(5)x(10)/(5+10) = 50/15 = 31/3ohms
Is A superconductor is A conductor having zero resistance?
Yes, a superconductor has zero resistance.
What is the working principle of resistors?
A linear resistor is a linear, passive two-terminal electrical component that implements electrical resistance as a circuit element. The current through a resistor is in direct proportion to the voltage across the resistor's terminals. Thus, the ratio of the voltage applied across a resistor's terminals to the intensity of current through the circuit is called resistance. This relation is represented by Ohm's law: Resistors are common elements of electrical networks and electronic circuits and are ubiquitous in most electronic equipment. Practical resistors can be made of various compounds and films, as well as resistance wire (wire made of a high-resistivity alloy, such as nickel-chrome). Resistors are also implemented within integrated circuits, particularly analog devices, and can also be integrated into hybrid and printed circuits. The electrical functionality of a resistor is specified by its resistance: common commercial resistors are manufactured over a range of more than nine orders of magnitude. When specifying that resistance in an electronic design, the required precision of the resistance may require attention to the manufacturing tolerance of the chosen resistor, according to its specific application. The temperature coefficient of the resistance may also be of concern in some precision applications. Practical resistors are also specified as having a maximum power rating which must exceed the anticipated power dissipation of that resistor in a particular circuit: this is mainly of concern in power electronics applications. Resistors with higher power ratings are physically larger and may require heat sinks. In a high-voltage circuit, attention must sometimes be paid to the rated maximum working voltage of the resistor. Practical resistors have a series inductance and a small parallel capacitance; these specifications can be important in high-frequency applications. In a low-noise amplifier or pre-amp, the noise characteristics of a resistor may be an issue. The unwanted inductance, excess noise, and temperature coefficient are mainly dependent on the technology used in manufacturing the resistor. Type your answer here...
Describe how a series circuit is put together?
A series circuit has more than one resistor and gets its name from only having one path for the charges to move along. Charges must move in "series" first going to one resistor then the next. If one of the items in the circuit is broken then no charge will move through the circuit because there is only one path. There is no alternative route. Old style electric holiday lights were often wired in series. If one bulb burned out, the whole string of lights went off.
What is the frequency of RC phase shift oscillator?
Without the simplification of all the resistors and capacitors having the same values, the calculations become more complex: Oscillation criterion:
Four resistors having a value of 100 ohms are connected in parallel what is the total resistance of the circuit?
What would the measured ohms be for two 100 ohm resistors wired in series? Two 100 ohm resistors wired in series measure 200 ohms.
How do you calculate the equivalent resistance of a circuit of the shape of a cube and a having a resistor of i kilo ohm in every branch?
Given twelve 1 KOhm resistors, connected in the shape of a cube, in order to determine the net resistance between opposite corners, first draw the cube in two dimensions. (Try this at each step before continuing, so you can understand the lesson as it unfolds.)There are three resistors leaving the initial vertex, and three resistors entering the final vertex. In between those six resistors, are six more resistors, each pair connected together on one end, and to two other resistors on the other end.If every resistor has the same value, then (by symmetry), the voltage on the ends of the first three resistors must be the same. Similarly, the voltage on the ends of the last three resistors must be the same.If two points in a circuit have the same voltage, then (for purposes of analysis) you can consider them to be shorted together. That short does not change the results, as there is no current flowing through that short.With the bottom ends of the first three resistors shorted, and with the top ends of the last three resistors shorted, the circuit degrades into three resistors in parallel, in series with six more resistors in parallel, in series with three more resistors in parallel.Three 1 KOhm resistors in parallel have a net resistance of 333 ohms. Six have a net resistance of 167 ohms. Two 333 ohm resistors and one 167 ohm resistor in series have a net resistance of 833 ohms, or 5/6 of 1 KOhms.Note: This technique does not work if the resistors are not all the same value. In that case, you would need to solve 12 equations in 12 unknowns, looking at the partial currents in each branch.
How does voltage remains constant in resistors connected in parallel?
It is not necessary for anything about them to be the same.All that is necessary is that they create the desired equivalent resistor, having the correct resistance and power dissipation rating without overstressing either resistor.
What is the total resistance of a series circuit that contains two resistors having values 28 ohms and 56 ohms?
28 + 56 = 84 ohms
What does resistoris mean?
The definition of the word resistors is "a device having a designed resistance to the passage of an electric current."
What must be the same for any two resistors that are connected in series?
The current in each.
What is the resulting total resistance if two resistors having 5 and 10 ohms resistance are connected in parallel?
3.333 ohmsHow do we calculate the answer?It is calculated from the "Resistors In Parallel Connection Law" which is:1 / RTOTAL = 1 / R1 + 1 / R2In this case:R1 = 5 and R2 = 10So:1 / RTOTAL = 1/5 + 1/10 = 0.2 + 0.1 = 0.3So:RTOTAL = 1 / 0.3 = 3.333======================================For any number of resistors in parallel . . .Total effective resistance = 1/(1/A + 1/B + 1/C + 1/D + . . . . .)(If you're working with resistor combinations, then you're supposed to know this formula.)If there are only two resistors in parallel, and you use the same formula and simplify it,the total effective resistance turns out to be (A)x(B)/(A + B) .(Just say to yourself "the product over the sum" and you'll remember it.)When the two resistors are 5 ohms and 10 ohms, the total effective resistance is:(5)x(10)/(5+10) = 50/15 = 31/3ohms
How can you get 25ohm total resistance from 100 resistors having 1 ohm resistance?
Connect 50 of them in series. This would have 50 ohm as equivalent. Same way have another 50 pieces in series. This again would have 50 ohm as effective value. Now connect these in parallel to each other. Now the effective would become as 25 ohm.
Twelve identical wires of resistance 6 ohm each are arranged to form the edges of cube the effective resistance bw the opp corners of cube is?
The effective resistance between opposite corners of a cube comprised of twelve 6 ohm resistors, one at each edge, is 5 ohms. There are several ways to solve this. One approach is to build a system of 12 equations in 12 unknowns, and solve them. Another approach is this... Consider that there are three resistors leaving the input node, and there are three resistors entering the output node. In between those three resistors, there are six resistors in a criss-cross matrix. (Draw it out, flattened, to see this.)Inspecting the six resistors in the center, you note that they are completely symmetrical. Since they are symmetrical, you can conclude that the voltage at the junction between the three input resistors and the six others is the same voltage. The same goes for the three output resistors. Said another way, the voltage across the three input resistors and the three output resistors is the same. Given two or more nodes in a circuit having the same voltage, you can draw a wire connecting them, i.e. a resistor of zero ohms. This does not change the characteristics of the circuit in any way, because zero voltage across any resistance is still zero amperes. Now that you have made these connections, look at the circuit. It has simplified to three parallel resistors, in series with six parallel resistors, in series with three parallel resistors. Three 6 ohm resistors in parallel is 2 ohms. Six 6 ohm resistors in parallel is 1 ohm. Three more 6 ohm resistors in parallel is 2 ohms. The total resistance is 2 + 1 + 2 ohms, or 5 ohms.
Why are resistors called resistors?
Resistors have resisting power(resists the electric power).Due to having the resistive property, the name resistor is given to such electrical device.
Resistors having extremely low tolerance rating are called as.?
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Three resistances each of 4 ohm are connected to form a triangle the resistance between any two terminals is?
That's like having a series combination of 4 + 4 ohms, in parallel with another resistance of 4 ohms. Calculate the series resistance, then use the parallel formula to combine it with the third resistance.
