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R is inversely related to temperature T so as temperature increases resistance decreases.
Specifically, R increases if the T coefficient is pos.(P.T.C) And decreases if T coefficient is neg. (N.T.C) Most conductors have P.T.C and most insulators have (N.T.C) . xept. like carbon. 1 of few conductors that has a N.T.C. But all can be found on a tablet. R.T.C / R mil-foot ,R, millimeter-meter and R.T.C @ 68*F
What else can I help you with?
Why during loading the voltage get decreased at output?
Output voltage (...of a transformer, for example...) will decrease as it is loaded because of the transformer's internal resistance. As output current increases/load resistance decreases, a larger voltage will be dropped across the internal transformer resistance. This same phenomenon is present in AC and DC systems (such as batteries).
Why does the terminal voltage decreases as the load current increases?
A: That will happen anytime the voltage source is not able to provide the power needed for the load. If the load exceed the power available from the source the voltage will be reduced as IR drop from the source
Is it desirable for a battery to have a high internal resistance?
No, it is desirable for a battery to have a low internal resistance.
Why is the internal resistance of a voltage source made to be low?
When a voltage source, such as a battery or a generator, is on open circuit -in other words, when it is not supplying a load- the voltage appearing across its terminals is called its 'open circuit voltage' and corresponds numerically to its electromotive force.However, when the voltage source supplies current to a load, that current also passes through the voltage source itself. This causes an internal voltage drop, which is the product of this current and the voltage source's internal resistance. This voltage drop acts in the opposite direction to the electromotive force and reduces the source's terminal voltage. This internal voltage drop will increase, of course, if either the load current increases or the internal resistance increases.So, in order to keep that the source's internal voltage drop is as low as possible, its internal resistance must be as low as possible. In the case of a battery, the internal resistance is due to the ionic resistance of the electrolyte/plates, whereas in a generator it is due to the resistance of the windings.
Actual internal resistance of 1.5 volt battery?
The value of internal resistance of 1.5 volt battery is 0.5 ohms.
What is the relationship between temperature and the internal energy of an ideal gas?
The internal energy of an ideal gas is directly proportional to its temperature. This means that as the temperature of the gas increases, its internal energy also increases. Conversely, as the temperature decreases, the internal energy of the gas decreases as well.
What is the relationship between the internal thermal energy of a system and its overall temperature change?
The internal thermal energy of a system is directly related to its overall temperature change. When the internal thermal energy of a system increases, the temperature of the system also increases. Conversely, when the internal thermal energy decreases, the temperature of the system decreases. This relationship is governed by the principle of conservation of energy, where energy cannot be created or destroyed, only transferred or converted.
What happens when environmental temperature increases from 20 c to 30 c?
1. Both the internal and the skin temperatures reach 40􀀁C. 2. Both the internal and the skin temperatures increase by about 7􀀁C. 3. The skin temperature decreases to about 30􀀁C. 4. The internal temperature increases by about 1􀀁C. 4
What happens to voltage when resistance increases?
Ohm's law states that "The current is directly proportional to the applied EMF (voltage) and inversely proportional to the resistance in the circuit." <<>> if resistor exists, resistance decreases according to ohm's law, current is directly proportional to voltage and current is inversely proportional to resistance it means as current increases, voltage increases. resistance increases, current decreases so as voltage if there is no resistor, there should be no resistance except internal resistance of voltmeter and ammeter
Why during loading the voltage get decreased at output?
Output voltage (...of a transformer, for example...) will decrease as it is loaded because of the transformer's internal resistance. As output current increases/load resistance decreases, a larger voltage will be dropped across the internal transformer resistance. This same phenomenon is present in AC and DC systems (such as batteries).
What happens when the temperature of lava increases?
Its viscosity decreases, which allows it to flow easier.
Why terminal potential difference is decrease when current in the circuit is increased?
The terminal potential difference decreases when the current in the circuit is increased due to the internal resistance of the power source. As the current increases, the voltage drop across the internal resistance also increases, leading to a decrease in the terminal potential difference available to the external circuit. This is described by Ohm's Law, V = E - Ir, where V is the terminal potential difference, E is the electromotive force of the source, I is the current, and r is the internal resistance.
What is the relationship between the change in internal energy and the behavior of an ideal gas?
The change in internal energy of an ideal gas is directly related to its behavior. When the internal energy of an ideal gas increases, the gas typically expands and its temperature rises. Conversely, when the internal energy decreases, the gas contracts and its temperature decreases. This relationship is described by the first law of thermodynamics, which states that the change in internal energy of a system is equal to the heat added to the system minus the work done by the system.
What happens to the internal energy of an ideal gas when it is heated from 0C to 4C?
The internal energy of an ideal gas increases as it is heated because the added heat increases the average kinetic energy of the gas molecules, leading to an increase in their internal energy. The internal energy is directly proportional to temperature for an ideal gas, so as the temperature increases from 0C to 4C, the internal energy also increases.
Why terminal voltage of a self excited shunt generator decreases with an increase of load?
The terminal voltage of a self-excited shunt generator decreases with an increase in load due to an increase in voltage drop across the internal resistance of the generator. As the load current increases, the drop across the internal resistance also increases, reducing the output voltage available at the terminals. This effect is known as voltage regulation and is a common characteristic of self-excited shunt generators.
What is the relationship between internal energy and the behavior of an ideal gas?
The internal energy of an ideal gas is directly related to its temperature. As the temperature of an ideal gas increases, its internal energy also increases. This relationship is described by the equation for the internal energy of an ideal gas, which is proportional to the temperature of the gas.
What happens when the temperature-of lava increases?
When the temperature of lava increases, its viscosity will decrease. Viscosity is a measure of the magnitude of internal friction of a substance.
