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First band has a color representing the first significant figure. Second band has a color representing the second significant figure. By default, the numbers are arranged first.second Third band has a color representing 10 raised to the power of. Fourth band represents the average accuracy of that lot of resistors that are made in that batch, by design and process control. If it is not present, it is ±20% (?) of the marked value. * black = 0 * brown = 1 * red = 2 * orange = 3 * yellow = 4 * green = 5 * blue = 6 * violet = 7 * grey = 8 * white = 9 * silver means ±10%, or -2 in third position * gold means ±5%, or -1 in third position So red, black, orange, gold... is a 2000 (or 2.0k) ohm resistor, with a 5% accuracy. A five band resistor has an additional significant figure between bands "2" and "3" as described above. Precision resistors (1% accuracy or better) are always printed values, with "203" also being a 2.0k ohm resistor.
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What is a material which allows electricity to flow through it but with but with resistance?
A "resistance" or "resistor".
What is the total resistance of a 5-ohm resistor and a 10-ohm resistor in a parallel series?
2
What is swamping resistance?
(Electronics) Resistor placed in the emitter lead of a transistor circuit to minimize the effects of temperature on the emitter-base junction resistance and its resistance is called swamping resistance.
Why do resistors have a color code?
Colour code used to identify resistance of the resistor
If the resistance in the circuit is increased what will happen to the current and voltage?
* resistance increases voltage. Adding more resistance to a circuit will alter the circuit pathway(s) and that change will force a change in voltage, current or both. Adding resistance will affect circuit voltage and current differently depending on whether that resistance is added in series or parallel. (In the question asked, it was not specified.) For a series circuit with one or more resistors, adding resistance in series will reduce total current and will reduce the voltage drop across each existing resistor. (Less current through a resistor means less voltage drop across it.) Total voltage in the circuit will remain the same. (The rule being that the total applied voltage is said to be dropped or felt across the circuit as a whole.) And the sum of the voltage drops in a series circuit is equal to the applied voltage, of course. If resistance is added in parallel to a circuit with one existing circuit resistor, total current in the circuit will increase, and the voltage across the added resistor will be the same as it for the one existing resistor and will be equal to the applied voltage. (The rule being that if only one resistor is in a circuit, hooking another resistor in parallel will have no effect on the voltage drop across or current flow through that single original resistor.) Hooking another resistor across one resistor in a series circuit that has two or more existing resistors will result in an increase in total current in the circuit, an increase in the voltage drop across the other resistors in the circuit, and a decrease in the voltage drop across the resistor across which the newly added resistor has been connected. The newly added resistor will, of course, have the same voltage drop as the resistor across which it is connected.
What is the difference between an ohmic resistor and a non-ohmic resistor?
A non-ohmic resistor doesn't have a constant resistance. A ohmic resistor has a constant resistance.
What terms is used to describe a wire which offers obstruction to the path of electric current?
A resistance or resistor.
Is resistor measured in amps?
No, a resistor isn't measured at all. A resistor has a quality called "resistance" - and that value is measured. Resistance is measured in Ohms.
What does resistor perform?
A resistor's resistance is measured in ohms. The higher the resistance the less current will flow with a constant voltage applied across the resistor. In terms of Ohm's Law Voltage = Current x Resistance.
What resistance must be connected in parallel to 6.0-ohm resistor to reduce the combined resistance to 15-ohm?
No such resistor exists. Any resistor placed in parallel with a 6.0 ohm resistor is going to reduce the combined resistance below 6.0 ohms.
What is a contact resistor?
A: I snot a resistor but rather an unwanted resistance on a contact
What does r mean in a resistor?
R stands for the resistance.
What are the losses in resistors?
The power lost in a resistor is(the current through the resistor) times (the resistance) watts. That's the same thing as(the voltage across the resistor)/(the resistance)watts.
When a 1 ohm resistor and a 1 ohm resistor are connected in series what is their conbined resistance?
The combined resistance will be 2 Ohms.
What is the resistance of a 10-ohm resistor and a 7- ohm resistor in a series?
3
What component that makes it more difficult for current to flow?
IF there is a Resistor
What do the colours on resistor mean?
It's a code to tell you the value of the resistance of the resistor.
