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It is the same principle as coins and notes. You can easily make up any [whole] number using a selection of these values.

The most efficient set would be powers of 2 but most people would not want to calculate 77, for example, from powers of 2. It is 64 + 8 + 4 + 1. In terms of the selection you have, it is 50 + 20 + 5 + 2. Same number of resistors but easier to add up (maybe!).

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Q: Why resistance in resistance box like 1 2 2 5 10 20 20 50 etc?
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What is a resistance decade box?

Resistance decade box is nothing but Resistance bank. It has various ranges of Resistance value ranging from few ohms to few mega ohms. In other terms, large value of resistance are fabricated in single box is said to be Resistance decade box.


How many Ohm resistances do you need to connect in parallel to produce a total resistance of 10 Ohm?

For an end-result of 10 ohms, you can have 1 resistance of 10 ohms, or 2 parallel resistance of 20 ohms each, or 3 resistances of 30 ohms each, etc.


When 10 ohm resistance and 100 mega ohm resistance are connected in series then what will be their conbined resistance?

The net effective resistance of resistors in series is the sum of the individuals.Combined resistance = (100,000,000) + (10) = 100,000,010Ωhms.


Compute resistance for a circuit with resistance of 10 us?

This question makes no sense. You are asking for resistance and then saying the resistance is 10 us. "US" is not a measure of resistance. The measure is called Ohms. Ohm's Law states that Voltage = Current x Resistance Hence Resistance = Volts divided by Amps.


What is the difference between resistor and resistance?

Resistance is the property of a conductor, which determines the quantity of current that passes through it when a potential difference is applied across it. A resistor is a electrical componet with a predetermined electrical resistance, like 1 ohm, 10 ohms 100 ohms 10000 ohms etc.. depending on how much current you want to pass through a circuit, you would design the circuit with the required resistors


What is the difference between resistance and resistor?

Resistance is the property of a conductor, which determines the quantity of current that passes through it when a potential difference is applied across it. A resistor is a electrical componet with a predetermined electrical resistance, like 1 ohm, 10 ohms 100 ohms 10000 ohms etc.. depending on how much current you want to pass through a circuit, you would design the circuit with the required resistors


When was The Resistance - Animorphs - created?

The Resistance - Animorphs - was created in 202000-10.


When was Meeting Resistance created?

Meeting Resistance was created in 2007-10.


110v and the current is 10 a what is the resistance?

Resistance is Volts over Current 11 Ohm = 110Volt / 10 Amp


In a circuit is current proportional to resistance?

Ohms law is: I = V / R (current = voltage / resistance)... where if the voltage or resistance changes then the current will change. ... the current and resistance is a inversely proportional linearly relationship ...this means that if the resistance doubles then the current halfs, if the resistance halfs then the current doubles, etc...hope this helps


What is decade resistance box?

It is used to dial in a specific resistance within the range of the box. It can be used wherever you need a resistor of an unknown value or a precise value. Most decade boxes provide reistance with .01% of the desired resistance. I've used them to balance a wheatstone bridge that had a tiny mV offset.


What happens to the resistance of the circuit when you add resistances in parallel?

Adding a resistance in parallel to another resistance will reduce the equivalent resistance. Parallel Equation: R1 = 10Ω R2 = 20Ω Req = R1R2/(R1+R2) = (1/R1+1/R2)-1 Req = 10•20/(10+20) = 6.67Ω