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Define Internal Resistance?
The internal resistance of a device is the resistance in ohms of that device. It is the resistance electrons need to overcome before electricity is said to flow.
What is the internal friction that hinders the flow of electrons through any material?
Internal friction created because the electrons hit the various metal's latices or atoms. Higher the temperature more movements so the possibility of hitting is higher so more resistance to flow
What is the use of universal high resistance voltmeter?
A voltmeter must have a very high resistance to measure voltage. A voltmeter is placed in parallel with the element that you are measuring. If the voltmeter has a low internal resistance, then all of the current will flow through the voltmeter instead of the element. You want all of the current to flow through the element, to get an accurate reading of the voltage. Conversely, an ampmeter must have zero resistance, because it is placed in series with the element.
What is the value of internal impedance of ideal current source?
internal resistance is always infinite in ideal current source .the internal resistance is in shunt with current source
What is difference between ideal current source and practical current source?
Internal resistance. The ideal current source has no internal resistance in parallel with it (if it was set to supply no current it would act as an open circuit), and all the current it supplied would have to flow through its load (even if the load was an open circuit, in which case the voltage across the current source would be infinite). A real current source has the practical limitation that it must have an internal resistance in parallel with it, therefor some of the current it supplied is bypassed through that internal resistance and never reaches the load (if the load was an open circuit, then all the current supplied is bypassed and the resulting voltage drop across the internal resistance limits the voltage across the current source).
Define Internal Resistance?
The internal resistance of a device is the resistance in ohms of that device. It is the resistance electrons need to overcome before electricity is said to flow.
CAN WATER DECREASE A SUBSTANCE'S RESISTANCE TO FLOW OF ELECTRICITY?
no
Can Water can decrease a substance resistance to the flow of electricity?
Reduce the temperature of the conductor.
How is viscosity related to flow rate?
Viscosity is a substances resistance to flow. So as the viscosity of a substance increases, the flow rate will decrease.
What is the degree to which a substance resists flow known as?
For resistance to electrical flow, the term is specific resistance of a substance.The resistance of a fluid (gas, liquid) to flowing is called its viscosity, referred to colloquially as its thickness.
What is the relation between viscosity and flow-ability of a material?
The higher the viscosity, the lower the flow-ability of a material.(Viscosity=internal resistance to flow)
What is the relation between viscosity and flow ability of a material?
The higher the viscosity, the lower the flow-ability of a material.(Viscosity=internal resistance to flow)
How electrical resistance can be measured in copper and aluminium?
Same as for any other substance: Apply a voltage and measure the current flow. (Resistance equals voltage divided by the current flow.)
What slows the flow of electrons?
Resistance slows the flow of electrons in a conductor.When you say that a substance has resistance, it actually means that the substance slows down the flow of electrons, thereby reducing the current. So, higher the resistivity of a substance, lesser the velocity of the electrons in the circuit assuming all the other values constant.
What is the effect of resistance of the flow of current?
Thet resistor opposes the flow of current through it becoz of its internal construction. Its material has opposing property.
What is viscoslty?
Viscosity is the resistance to flow of a substance. The higher the viscosity, the more resistant it is to flow. That is to say, glue has a higher viscosity than water.
What is the ability of substance to slow down the electricity?
The property of a substance enabling it to slow down electricity is called resistance and is measured in ohms. This ability is called electrical resistance. Every substance has this. Gold has the minimum resistance for electricity. Such substance is called electrical conductor. And there are substance where the electrical resistance is affected by heat, light and other conditions. And for those substance where electricity can not flow are called electrical insulators (non-conductors) such as wood and ceramics.
