0
On the contrary, for a given voltage, lowering the resistance will increment the current and the power dissipated by the resistor. hence heating up the resistor.
For a higher resistance value, you will need to increment the current by incrementing the voltage to increment the power dissipated.
What else can I help you with?
Is the resistamce of fuse wire high or low?
The resistance of fuse wire is low, typically in the range of 0.01 to 1 ohm. This low resistance allows the fuse wire to quickly heat up and melt when current exceeds a safe level, breaking the circuit and protecting the rest of the circuit from damage.
How is an open circuit different from a short circuit?
I guess you could call them 'reciprocals' in a sense.-- "Open circuit". . . Has a very high resistance. Nominally infinite.. . . No voltage, no matter how high, is high enough to produce any current through the circuit.. . . Current through it is always zero.. . . Household example: a light switch that's open (labeled OFF in that position).-- "Short Circuit". . . Has a very low resistance. Nominally zero.. . . Any voltage, no matter how small, is enough to produce very high current through the circuit.. . . Household example: toddler stuck a paper-clip into the two holes of the outlet.
Why a hair dryer has a high- heat setting with a lower resistance than the low-heat setting?
Because a higher resistance would have resulted in more heat loss, but the higher is he current, the more energy is lost to heat. Therefore, a lower resistance would release more heat.AnswerPower is equal to voltage squared divided by resistance. So, for a given voltage, the lower the resistance the higherthe power.
Wires with high resistance change electrical energy into what?
Wires with high resistance change electrical energy into heat energy. This occurs due to the resistance in the wire hindering the flow of electrons, causing them to collide and generate heat.
How does an electric heater give out heat?
An electric heater works by passing an electric current through a high resistance wire, causing it to heat up and produce heat through a process called Joule heating. The heat is then transferred to the surrounding air through convection, warming up the space.
When is too high a resistance not a good thing in a circuit?
Too high a resistance is always not a good thing in a circuit. That's what "too high" means.
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.
How does the loading effect of an ammeter in a low resistance circuit compare to the loading effect in a high resistance circuit?
The voltmeter has an internal resistance, which should be as high as possible. As this resistance draws current from the circuit under test, it will affect circuit operation. This is more pronounced in a high impedance circuit because the current drawn flows through higher resistances.
A thicker resistance wire produces more heat?
I'm not sure what you mean by "thicker resistance" wire? The thicker or more diameter of a wire the less resistance it has. A larger diameter wire would produce less heat. More resistance would produce more heat.
An open circuit has an infinate resistance?
There is no such a thing as infinite resistance but it could be a very high resistance.
Which part of the electric stove produce the heating effect?
A heating element. That is made out of high electrical resistance material. As electricity pass through the element a high amount of resistance is encountered, thus heat is created.
Is the resistamce of fuse wire high or low?
The resistance of fuse wire is low, typically in the range of 0.01 to 1 ohm. This low resistance allows the fuse wire to quickly heat up and melt when current exceeds a safe level, breaking the circuit and protecting the rest of the circuit from damage.
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.
Why don't AC input wires to a transformer just short circuit?
The resistance of the winding in the primary of a transformer constitutes a load. As long as there is resistance then there is no short circuit. A short circuit is considered no resistance which develops an instantaneous high current. That is why fuses and breakers are inserted into the circuit to open the high current flow under a short circuit condition.
Why might the current in a short circuit be higher than the current in the original circuit?
The current in a short circuit may be very high because the resistance in the short circuit is probably less than the resistance in the original circuit.
How is an open circuit different from a short circuit?
I guess you could call them 'reciprocals' in a sense.-- "Open circuit". . . Has a very high resistance. Nominally infinite.. . . No voltage, no matter how high, is high enough to produce any current through the circuit.. . . Current through it is always zero.. . . Household example: a light switch that's open (labeled OFF in that position).-- "Short Circuit". . . Has a very low resistance. Nominally zero.. . . Any voltage, no matter how small, is enough to produce very high current through the circuit.. . . Household example: toddler stuck a paper-clip into the two holes of the outlet.
Should all the materials that make up a circuit have high resistance?
No. There should be substantial resistance only where the circuit design needs it and wants it, and as little as possible everywhere else in the circuit.
