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Which components have a high resistance in the dark but low resistance in the light?
Wiki User
∙ 10y ago
A Cadmium Disulphide cell. (aka Cds cell)
Wiki User
∙ 10y ago
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Why can you ignore the resistances of wires in circuits with lower current?
Actually, it depends on the resistance of the other components in the circuit, and not so much on whether or not the total circuit current is low or not. Often, conductor resistance is ignored because it is so much lower than the active components that it does not matter. In a circuit with low resistance components, however, conductor resistance can be important, even if the total current is relatively low, because the voltage drop over the wire becomes a significant part of the overall circuit. To answer the specific question, even though its slightly misleading, conductor resistance does tend to become important in high current circuits because the voltage drop over the conductor (Ohm's Law: Voltage is current times resistance) can become high. Even in high current circuits, however, if the conductor is substantially less resistive than the components, the tendency is still to ignore it, except that you have to account for heating of the conductors along with heating of the components.
To test for resistance in a circuit should be energized or de-energized?
To test for resistance in a circuit, the circuit should be de-energized.
What is excessive electrical resistance?
High resistance means insulation
What is the difference between on and off state resistance?
On Circuit Resistance = Close to the total load Resistance. Off Circuit Resistance = Near Infinitive High Resistance.
Is high electrical resistance good or bad?
electrical resistance is when something resists the electrical current .. eg rubber hope it helped
Is the material inside a light bulb a conductor or resistance?
It has high resistance.
Why are wires with high resistance used in light and toasters?
High resistance wires convert the energy used, into heat. That makes the toaster heat up or the light to turn on.
Why are wires with high resistance used in light bulbs and toasters?
High resistance wires convert the energy used, into heat. That makes the toaster heat up or the light to turn on.
Why might you want to use a material with high resistance?
High Resistance Opposes the flow of Electricity that results into production of Heat and Light.
What are some devices that are wired such that they have a high resistance in order to create heat?
A light bulb is the best example. The tungsten creates such a high resistance that all the accumulated heat produces light energy.
Do dark spots on xrays mean cancer?
No not really, Dark spots are areas of low resistance to the x-ray which means its gettin through easier, White is High resistance like Bone.. Depends on where they are though...
A dangerous circuit with low resistance and high current?
Another name for a circuit with low resistance and high current is a short circuit. It is dangerous because, if you have sufficient energy in the power source, you can damage components and/or cause fires.
What components make up a heating element?
Usually Nichrome, as it has very high resistance and does not oxidize in its usual temperature range.
Why can you ignore the resistances of wires in circuits with lower current?
Actually, it depends on the resistance of the other components in the circuit, and not so much on whether or not the total circuit current is low or not. Often, conductor resistance is ignored because it is so much lower than the active components that it does not matter. In a circuit with low resistance components, however, conductor resistance can be important, even if the total current is relatively low, because the voltage drop over the wire becomes a significant part of the overall circuit. To answer the specific question, even though its slightly misleading, conductor resistance does tend to become important in high current circuits because the voltage drop over the conductor (Ohm's Law: Voltage is current times resistance) can become high. Even in high current circuits, however, if the conductor is substantially less resistive than the components, the tendency is still to ignore it, except that you have to account for heating of the conductors along with heating of the components.
Why are high resistance materials useful in light bulbs?
The filament in a light bulb causes the light bulb to heat up and give off life.
What two components are responsible for the dark color of mafic rock?
== Silicon and oxygen.
What types of elves are there?
Wood elves, high elves, dark elves, light elves.
