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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.
How might adding a piece of gold wire to the circuit affect the flow of electricity through the circuit?
B.
Do catalysts affect temperature?
A catalyst affects the speed of a chemical reaction. If the chemical reaction gives off heat, the reaction may affect the temperature, but the catalyst by itself doesn't affect the temperature.
When does a short circuit occur?
You will get a short circuit if two uninsulated parts of the supply conductors, touch each other. You can also get a short circuit if the "hot" supply conductor touches any grounded metallic part of the system.
Does temperature does temperature affect viscosity of magma?
High temperature=low viscosityLow temperature=high viscosity
What factors affect an enzymes operation the most?
temperature and pH
What two factors affect an enzymes operation the most?
temperature and pH
How does a circuit happen?
When the cables of the electrical appliances are worn out or it's not connected properly,a short circuit may occure.A short circuit has a very low resistance that almost all electric current flow through it.It'll affect the operation of the electrical appliances.Owing to the heating effect,the excess electric current would produce a large amount of heat,wihout a fuse or a circuit breaker,a fire may be occured when there's a short circuit.
How would a broken light switch in a bedroom affect a kitchen?
It shouldn't affect it at all. The light switch should affect only the operation of the light in your bedroom. If anything the switch would be on the same circuit as your kitchen lights and then it would be connected in paralell so it wouldn't have any effect on anything other than the load it was intended to control unless it somehow shorted to ground in which case it would trip your breaker and disrupt the whole circuit.
How might ambient temperature may affect the resistance values you would measure in a circuit?
Ambient temperature might affect the readings of the resistance value you would measure because the resistance of some materials changes with the temperature.
You have an equipment rated for 230V 14 FLA and you have it connected to a 20A circuit breaker. you just noticed that is now connected to a 30A circuit breaker. how would this affect your equipment?
If the motor starts without tripping the breaker and when the motor picks up the load and the breaker doesn't trip, just leave it. Code states that motors should be protected by 2.5 times the FLA to allow for start up inrush current which can go as high as 300%. In this case 14 x 2.5 = 35 amps. There not being a breaker of that size go to the next highest, that being a 40 amp breaker. The motor should have additional overload protection on the circuit set to the FLA of the motor and not depend on the breaker to provide overload protection.
What are the disadvantages of using ammeter and voltmeter?
The disadvantage of using a voltmeter and ammeter on circuit measurements is that internal burden in both these instruments can affect circuit operation so much as to make a measurement useless.
How do you calculate appropriate circuit breaker in the circuit for ac voltages?
It is depending on : whether the ac power is 110 or 220 v , length of wire/cable from mains to CB(circuit breaker),diameter of wire/cable consumption of circuit ( How much watts the circuit consume) i.e load .. don't forget this relation I=V/R . where I= current (amps) , V=voltage & R= resistance also I=P/V where P is power in watts . note that less voltage or thinner wire may affect the real rating of CB
On a 1999 reodeo does the egr affect the ac?
The AC circuit does run into the EGR solenoid but I do not quite understand what its purpose is. Im thinking it has to do with cooling fan operation and idle speed adjustment. The EGR system simply allows exhaust gas to enter the combustion chamber when the cylinder temperature gets high to cool combustion temperature down.
How the rccb works?
An RCCB (Residual Current Circuit Breaker) works by constantly monitoring the current flow between the live and neutral wire. In normal operation with the two lines in balance the circuit works. If for any reason, even a small amount of imbalance in detected (as small as 30 milliamps) the breaker will trip in no more than 200 milliseconds. This is well within the limits of preventing both fire and bodily harm. Installation of these breakers is fast becoming mandatory around the world, especially on electrical circuits in areas prone to water (bathrooms, kitchens, etc...). It should be noted however, that if an impedance load (such as a motor) in introduced to a circuit protected by an RCCB there may be a problem with nuisance tripping of the breaker. So in most instances the bus bar in a breaker panel can be cut and the RCCB only installed on on side. This provides the protection required in areas where an RCCB is recommended, and allows standard breakers to be used in areas where the more expensive RCCB is not required or may affect equipment operation.
How rccb work?
An RCCB (Residual Current Circuit Breaker) works by constantly monitoring the current flow between the live and neutral wire. In normal operation with the two lines in balance the circuit works. If for any reason, even a small amount of imbalance in detected (as small as 30 milliamps) the breaker will trip in no more than 200 milliseconds. This is well within the limits of preventing both fire and bodily harm. Installation of these breakers is fast becoming mandatory around the world, especially on electrical circuits in areas prone to water (bathrooms, kitchens, etc...). It should be noted however, that if an impedance load (such as a motor) in introduced to a circuit protected by an RCCB there may be a problem with nuisance tripping of the breaker. So in most instances the bus bar in a breaker panel can be cut and the RCCB only installed on on side. This provides the protection required in areas where an RCCB is recommended, and allows standard breakers to be used in areas where the more expensive RCCB is not required or may affect equipment operation.
What are the disadvantage of a circuit breaker or a fuse in a circuit?
The only ones that could affect that decision to put one in is if you're planning on smoking or blowing-up that item in the circuit, or the hassle of changing a 20 cent - 5 dollar item instead of the more expensive item.
