How can you positively charge an electroscope using an acetate strip and a paper towel?
Rub the acetate strip against the paper towel to transfer electrons from the acetate strip to the paper towel, leaving the acetate strip positively charged. Touch the electroscope's metal knob with the positively charged acetate strip to transfer the positive charge to the electroscope. This will cause the electroscope's leaves to repel each other, indicating a positive charge.
What happens when a steel spoon is rubbed with a polythene?
When a steel spoon is rubbed with polythene, the transfer of electrons can occur due to friction between the two materials. This results in the spoon becoming negatively charged, while the polythene becomes positively charged. This static electricity interaction causes the two materials to be attracted to each other.
Can metals produce static electricity?
Yes, metals can generate static electricity when they come into contact with non-metal materials and rub against them. This rubbing can cause electrons to be transferred between the materials, leading to a build-up of static charge on the metal surface.
Why does the leaves of an electroscope collapse when you touch the upper part with your hands?
When you touch the upper part of an electroscope with your hands, charge is transferred from your body to the electroscope, neutralizing the charge on the leaves. This causes the repulsive force between the like charges on the leaves to decrease, allowing the leaves to collapse.
What will be the electric field intensity at the center of a hollow charged sphere?
The electric field intensity at the center of a hollow charged sphere is zero. This is because the electric field created by the positive charges on one side of the sphere cancels out the electric field created by the negative charges on the other side, resulting in a net electric field of zero at the center.
How do you remove the static from a balloon?
You can remove static from a balloon by rubbing it with a dryer sheet or a cloth dampened with water and vinegar. The friction from rubbing helps to neutralize the static charge on the balloon's surface.
What are some conservative forces?
Some examples of conservative forces include gravitational force, electromagnetic force, and elastic force. These forces depend only on the positions of the objects and not on the paths taken between them. This means that the work done by a conservative force on an object moving between two points is independent of the path taken.
What is the relationship between Coulomb's law Maxwell's Law and Faraday's law?
SEE:
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http://people.bu.edu/wwildman/WeirdWildWeb/courses/sl/resources/physics/em/em01.htm
How does Static electricity differ from electric discharge?
Static electricity is the buildup of electric charge on a surface, while electric discharge is the sudden release of that built-up charge, resulting in a spark or shock. Static electricity occurs when two objects rub together, causing friction and transferring electrons, while electric discharge happens when the accumulated charge finds a path to ground, balancing the charge difference.
Why cant static electricity be created on a metal tube by rubbing it with another material?
Static electricity is typically generated by the transfer of electrons between two materials with different tendencies to attract electrons. Since metals are conductive, any excess charge on the metal tube will quickly dissipate due to the free movement of electrons within the metal. This prevents the buildup of static electricity on a metal tube when rubbed with another material.
How does a electrostatic precipitator use static electricity?
Inside an electrostatic precipitator some of the electrodes are made to be positively charged and some of them are made to be negatively charged. Usually the voltage between the electrodes is very high. When smoke or other exhaust gases are sent through the precipitator particles in the gas with negative charges tend to go to the positively charged electrodes and positively charged particles go to the negatively charged electrodes. When the particles reach the electrodes many are neutralised and fall to the bottom of the precipitator where they may be collected periodically. Some cling to the electrodes which means that precipitators must be cleaned periodically too.
Why do plastic objects frequently becoems covered with dust?
Many plastic objects attract dust and hairs because they have a big amount of static.
In this case, if a duster is dirty from other cleanings, then the dust would possibly attract onto it.
Hope this helped!
Instructor Solutions Manual for Physics by Halliday Resnick and Krane fifth vol2?
The solutions manual for the book "Physics" by Halliday, Resnick, and Krane Fifth Edition Volume 2 is a valuable resource for students studying physics. It provides step-by-step solutions to the problems in the textbook, helping students to practice and understand the concepts better. You may be able to find this manual through online bookstores or by contacting the publisher directly.
What happens if you continue to rub a glass surface?
Continuing to rub a glass surface can create static electricity, leading to the accumulation of charge on the surface. This can result in attracting dust and small particles to the surface, giving it a dusty appearance.
Why does static charge not tend to build up on a conductor?
Static charge does not tend to build up on a conductor because charges on a conductor move freely due to the presence of free electrons. Any excess charge present redistributes itself on the surface of the conductor, neutralizing and eliminating the build-up of static charge.
What is an electric field around a negative charge like?
The electric field around a negative charge radiates outward, with field lines directed toward the charge. This means that a positive test charge placed in this field would be attracted toward the negative charge. The strength of the field decreases with distance from the negative charge.
How you convert galvanometer into ammeter in detail?
By attaching a resistance in parallel connection with the galvanometer. Or
when a low resistor connected in parallel with galvanometer ,the galvanometer is converted in ammeter. and the resistor is called shunt resistance.
How can you show that like charges repel while unlike charges attract each other?
When two bodies charged in similar manner (i.e. like charges) are brought near, they will repel .Whereas when two bodies of different materials charged in different manner(i.e.unlike charges) or one charged & one uncharged body brought near will attract.This is how we can show that like charges repel while unlike charges attract each other.
Which instrument can measure static electricity having a potential difference as low as 0.1 volts?
An electroscope can be used to measure static electricity with a potential difference as low as 0.1 volts. It can detect small charges by showing the presence of electric fields through the movement of a metal leaf or needle.
How do you get rid of static electricity on plastic?
Prevention is easier than taking care of it after the fact. Some of the methods are to spray the plastic with an anti-static spray or to rub an anti-static dryer sheet on it as well. If you're just using the plastic as a container you could possibly coat it with aluminum foil or a thin layer of spray paint, however, those may not be useful or prudent methods for you.
How will you shield a sensitive instrument from a strong electrostatic field?
One way to shield a sensitive instrument from a strong electrostatic field is to use a grounded conductive enclosure around the instrument. This enclosure can help dissipate the electrostatic field away from the instrument and prevent interference. Additionally, using shielding materials that have high conductivity, such as copper or aluminum, can further enhance the protection against electrostatic fields.
No, not all objects have charge. Objects are made up of atoms, which consist of positively charged protons, negatively charged electrons, and neutral neutrons. The overall charge of an object depends on the balance of these particles.
An electron has the greatest chance of overcoming the electrostatic forces surrounding the nucleus of an atom. This is because electrons are much lighter and can be easily influenced by external forces, allowing them to move around the nucleus within the electron cloud.
What is does static charge distribution?
Static charge distribution refers to the arrangement of electric charges on an object or within a system when the charges are at rest and not moving. It describes how the charges are distributed across the surface or volume of the object, influencing the electric field surrounding it. Static charge distribution can lead to phenomena like attraction or repulsion between objects and can be manipulated for various practical applications.
Who discovered static electricity in 600 BC?
Thales of Miletus, an ancient Greek philosopher, is often credited with discovering static electricity around 600 BC. Thales observed that when amber was rubbed with fur, it gained the ability to attract lightweight objects like feathers.