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What are quasi static fields?
Quasi-static fields refer to electromagnetic fields that change slowly enough over time that the displacement currents can be neglected compared to conduction currents. In such fields, the temporal variations are small enough that the system can be treated as static for practical purposes, allowing the use of electrostatic and magnetostatic principles. This approximation is often applicable in scenarios like low-frequency AC circuits or in electrostatics where fields vary slowly compared to the speed of light. As a result, quasi-static fields simplify the analysis of complex electromagnetic phenomena.
What is engine force?
pressure in cylinder over piston area = force force over stroke = work
Is the oscilloscope a voltmeter?
An oscilloscope is not a voltmeter, though it can measure voltage. While a voltmeter provides a static measurement of voltage at a single point in time, an oscilloscope displays voltage signals over time, allowing for the analysis of waveforms, frequency, and other characteristics. This capability makes oscilloscopes particularly useful for diagnosing electronic signals and behaviors in circuits.
What two statements are true regarding the advantages of the use of static routes?
Incresed SecurityThe administrator has controls over routing
Why does a static condenser differ from synchronous condenser?
Unlike a static condenser (capacitor bank), the value of reactive power from a synchronous condenser can be continuously adjusted. A synchronous condenser also has other advantages over static condensers such as: - not being affecting by harmonics (some harmonics can even be absorbed by a synch condenser) - producing no switching transients
What is difference between static and dynamic force?
Static force is a force that does not change in magnitude or direction over time, while dynamic force is a force that varies in magnitude or direction over time. Static force typically refers to forces in equilibrium, while dynamic force deals with forces that cause acceleration or movement.
Why is a boy's hair attracted to his sweater when he pulls it over his head?
When the sweater is pulled over the head, the friction between the hair and the fabric generates static electricity. This static electricity causes the hair to be attracted to the sweater as the opposite charges (positive and negative) between the hair and the fabric interact.
What does static load refer to?
Static load refers to a stationary force acting on a structure or a component. It is a constant force that does not change over time. Static load is important to consider in engineering and construction to ensure that structures can safely support the weight placed on them without failure.
Why does a jersey make a cracking sound when you put it over your head?
The sound is caused by static electricity.
What is an example of static load?
An example of static load is a book resting on a table. The weight of the book creates a force that is evenly distributed and does not change over time.
What does the slope of the static friction vs normal force represent?
The slope of the static friction vs normal force represents the coefficient of static friction. This coefficient indicates the maximum frictional force that can be exerted between two surfaces before one begins to slide over the other.
What factor does the limiting value of the force of the static friction depend?
limiting friction is force of friction when a body slides over the surface of another body
Why does your jersey make a crackling sound when pulling it over your head?
The crackling sound is caused by static electricity, which is produced by the friction of your jersey.
What is the force that keeps you from sliding on an icy sidewalk kinetic friction static friction?
The force that keeps you from sliding on an icy sidewalk is static friction. Static friction acts when two surfaces are in contact with each other but not moving relative to one another. Once you start moving, the force of kinetic friction takes over to oppose the motion.
When a body slides over a surface the kinetic friction and static friction related as?
Kinetic friction is the friction that applies when an object is moving; static friction is the friction that applies when the object is not moving. Static friction must always be greater than, or equal to, kinetic friction.
What causes your hair to stand up after pulling a wool sweater over your head?
When you pull a wool sweater over your head, friction between the sweater and your hair can create static electricity. This static charge causes your hair to stand up as the individual hairs repel each other due to having like charges.
If you swing a bottle of water over your head why does it not come out?
Due to centripetal force
