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Graph of resistance of filament lamp against potential difference?
Wiki User
∙ 11y ago
It will vary from 0 to a certain value but at a slower rate.
Wiki User
∙ 11y ago
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Is volt the SI unit for voltmeter?
No it is not. A volt is a joule divided by a coulomb, it is m2∙kg∙s−3∙A−1
When a high-energy bond of ATP is broke primarily what happens to the released energy?
The fact that the atoms get apart (against a force that attracts them) means there is potential energy.The fact that the atoms get apart (against a force that attracts them) means there is potential energy.The fact that the atoms get apart (against a force that attracts them) means there is potential energy.The fact that the atoms get apart (against a force that attracts them) means there is potential energy.
When potential energy turns into electrical energy which form of energy does potential first become?
Potential energy becomes static energy in the form of a difference of potential energy between two bodies, or clouds of charged particles. For instance the motion of any object against another object causes particles to become statically charged. That is potential and electrical. Once an electrical path is found between those fields the electrical force becomes similar to kinetic force and this is current.
What is meant by the term driving forces?
driving force is the opposite force against (air resistance, friction, drag, tension) it is the force provided by some kinda potential, A car engine provides driving force or in fact any kinda force to keep the object moving
What opposing forces act on an object falling freely through the atmosphere?
The forces that affect the rate of a falling object are Gravity and Air Resistance. Gravity affects the speed and the velocity of the object by speeding it up as it falls closer to the earth, and Air resistance works against the object pushing against it.
What is difference between corrosion resistance and oxidation resistance?
corrosion resistance is resistant against chemicals oxidation resisstance is restant against oxigen
What is the difference between an insurgency and a resistance?
Insurgency is an act of rebellion against a constituted authority whereas resistance is a group of people who are dedicated for resisting foreign occupation or an invasion. The main difference is that insurgency does not involve resistance against foreign invasions but only against the same nation in which they are located.
Is volt the SI unit for voltmeter?
No it is not. A volt is a joule divided by a coulomb, it is m2∙kg∙s−3∙A−1
Why does the filament lamp does not follow Ohms Law give any example?
A filament's resistance value varies with temperature. When directly measuring resistance, the filament is off, and at or near room temperature. When the circuit is turned on to measure voltage and current, the filament's temperature will increase and the resistance value will increase. This makes it appear as though Ohm's law is wrong.AnswerThere is no difficulty; your experiment will simply prove that the filament of the lamp doesn't obey Ohm's Law.When you plot the results of current against voltage for a lamp's filament, obtained from your experiment, the result will be a curved line, indicating that the current is notproportional to voltage (due to a changing resistance). This shows that the filament doesn't obey Ohm's Law. To obey Ohm's Law, the result must be a straight-line graph.Although the resistance of the lamp can be found at any point along the curve from the ratio of voltage to current (i.e. R = V/I) at that particular point, the lamp does not obey Ohm's Law. Ohm's Law only applies when the ratio of voltage to current remains constant throughout the experiment.So no difficulty has arisen with your experiment, you have simply proved that Ohm's Law doesn't apply to the lamp filament. Believe your results!!
What is potential difference or voltage?
If you take two different nodes in a network and if you find the difference in voltage for those nodes then it is known as potential or voltage difference. Here the reference is not taken. But if you find potential difference between a node and its respective ground it is known as voltage at that node here reference is ground potential i.e zero.Answer'Voltage' is synonymous with 'potential difference'; they both mean the same thing. And it is important that these terms are not confused with 'potential'. So, it is incorrect to say 'voltage difference' (which would mean 'potential difference difference'!), or to describe a voltage as existing 'at' a particular point, or 'with reference to', for example, earth or ground.In very simple terms, if two points are at different potentials, then there is a potential difference (or 'voltage') between them. A potential exists when work is done moving a charge to a particular point; the greater the work, the higher the potential. 'Potential' is roughly equivalent to the potential energy gained by an object when it is lifted against the force of gravity.Think of it this way: 'potential' is equivalent to 'height', whereas 'potential difference' (voltage) is equivalent to the difference between points at different heights.
What is system resistance?
The resistance the heart has to pump against
When you do resistance exercise you work against what resistance?
Weight
What does potential diffrence mean?
Potential Difference is the difference in electric potential energy per coulomb of charge at one point of a circuit compared to the charge at another point in a circuit. Potential difference, or voltage, is a way of describing the energy of an electric field without using test charges. In circuits, potential difference is the difference in voltage from one part of a circuit to another. It can also be described by ohms law where the Voltage=Current*Resistance In electrostatics, potential difference is the line integral of the electric field from one point to another with respect to distance.
Is the after load the resistance what the ventricle in the heart has to contract against?
The resistance against which the ventricle contracts is know as afterload.
How is potential difference measured?
Voltmeters and Potentiometers are used to measure potential difference.2nd Answer:Not true. While a voltmeter is indeed used to measure potential difference, the potentiometer is a rotating control device, like a volume control on a radio. The potentiometer is actually a variable resistor, and measures absolutely nothing.
What is normal systemic vascular resistance?
The resistance the heart has to pump against
When you do resistance exercise you work against the resistance or blank of an object?
weight
