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The internal resistance of a fluid which tends to prevent it from flowing is called?
Wiki User
∙ 10y ago
Viscosity
Wiki User
∙ 10y ago
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What is the ability to regulate the amount of charge flowing in a circuit is called?
Resistance is the ability to regulate the amount of charge flowing in a circuit.
What is meant by static and dynamic resistance?
static resistance: This is measured when diode id forward biased and input is a D.C signal. The ratio of voltage applied to the current flowing through diode gives static resistance Dynamic resistance : this is measured when input is A.C signal. since A.C signal varies continuously the resistance offered also changes continuously. the ratio of change in voltage to change in current gives dynamic resistance.
Why a transformer called machine?
induced magnetic field by flowing electricity
What is the unit of resistance called?
ohm's
What is a circuit path called that has a break in it preventing current from flowing?
That's an "open" circuit.
The resistance of a liquid to flowing is called .?
Viscosity
The opposition to the movement of charges flowing through a material is called what?
RESISTANCE.
What is the ability to regulate the amount of charge flowing in a circuit is called?
Resistance is the ability to regulate the amount of charge flowing in a circuit.
Is The ability to regulate the amount of charge flowing in a circuit called resistance?
yes
What is liquids resistance to flowing is called?
The resistance of a liquid to flowing is its viscosity.Viscosity is a property arising from friction between neighboring particles in a fluid that are moving at different velocities. In liquids, it could be considered the "thickness". For example, maple syrup has a higher viscosity than water.
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 difference between the emf of a battery and the lost volts when discharging called?
Internal resistance
Flaps of connective tissue called prevent blood from flowing backward in the heart?
Valves. Mitral and aortic.
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.
Does a voltage source have resistance?
Voltage source: is any source that voltage and amperage come from. Resistor: is any part of a circuit that consumes that energy!
What is the name of flowing electricity?
Flowing electricity is called electric current.
Why do you get different results when calculating the voltage drop across a resistor and ignoring resistance of a voltmeter and when considering it?
Voltage drop is the product of current and resistance. When you connect a voltmeter across a resistor, you are connecting that voltmeter's internal resistance in parallel with that resistor. The resulting resistance of this parallel combination is lowerthan that of the resistor. As a result the voltage drop (current times this lower resistance) will be lower than it would be without the voltmeter connected. This is called the 'loading effect' of that voltmeter.The higher the internal resistance of the voltmeter, the less effect it will have on lowering the overall resistance when connected across a resistor. This is why the internal resistance of a voltmeter is made deliberately very high. Under most circumstances, therefore, a conventional voltmeter will have very little effect on the resistance of the circuit being tested and, so, it will have no significant effect on the voltage appearing across the resistor.However... for circuits that already have exceptionally-high resistance values, you must be careful when you select a voltmeter as you must take into account its internal resistance and ensure the voltmeter you use has the very highest internal resistance available. This is because the loading effect increases with circuits that have a high resistance. That might involve selecting a voltmeter that works on a completely-different principle , such as an electrostatic voltmeter or, perhaps, an oscilloscope
