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Predict what would happen if you touched the knob of a positively charged electroscope with another positively charged object?
Wiki User
∙ 12y ago
In order to test the presence of a charge on an object, the object is brought near to an uncharged pith ball. If the object is charged, the ball will be attracted to it and move toward it.
The attraction occurs because of induced polarisation of the atoms inside the pith ball. The pith is a nonconductor, so the electrons in the ball are bound to atoms of the pith and are not free to leave the atoms and move about in the ball, but they can move a little within the atoms.
If, for example, a positively charged object is brought near the pith ball, the negative electrons in each atom will be attracted and move slightly toward the side of the atom nearer the object. The positively charged nuclei will be repelled and will move slightly away.
Since the negative charges in the pith ball are now nearer the object than the positive charges, their attraction is greater than the repulsion of the positive charges, resulting in a net attractive force.
This separation of charge is microscopic, but since there are so many atoms, the tiny forces add up to a large enough force to move a light pith ball.
source:
http://en.wikipedia.org/wiki/Electroscope
Wiki User
∙ 11y ago
Wiki User
∙ 14y agoa electroscope basically uses the same idea as a compass... if its positive it will point one way if its negative it will point another..
u can also use a cathode ray tube and see which way the particle beam goes..
Wiki User
∙ 12y agoIf the charges object, was just say positive, and then touches the neutal object . The neutal object then becomes positive as well . Same goes for if the charged object was negative.
Wiki User
∙ 16y agoWell there, this answer is quiet easy; as you can see, negatively object touches the neutral object the neutral object will gain electrons therefore it is a negative object now.
Wiki User
∙ 13y agoThe electrons in the electroscope are attracted to the positively charged object leaving the protons in the leaves to repel from each other .
Wiki User
∙ 11y agoThe two metal leaves will repel from one another because the electrons will go onto the leaves making them repel.
Wiki User
∙ 12y agoLike charges repel.
Unlike charges attract.
Therefore, you would expect them to repel each other.
Wiki User
∙ 12y agoSome one told me that if someone did that he would probably die. It's true or not?
Wiki User
∙ 11y agopositive charge flow through the conductor.
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If a postivively charged rod is brought near the knob of a positively charged electroscope the leaves of the electroscope will?
separate further
What would happen if you touched a knob of positivly charged electroscope with another positivel charged object?
They repeal each other because they are each positively charged.
What would you use to see if somthing is charged?
an electroscope is used to determine whether an object is charged or not. However, it will not tell if the object is positively or negatively charged.
An electroscope has been charged by induction with the help of a charged glass rod the charge on the electroscope will be?
negative
How can gold leaf electroscope be used to detect an electric charge?
In order to identify the charge of a body we should use a charged electroscope. Let us say the electroscope is negatively charged. Now bring the unknown charged body 'X' near the cap of the electroscope. If the leaves diverge more the charge in 'X' must be negative. Suppose that the leaves close a little when 'X' is brought near 'C', then 'X' may have a positive charge or it may not have any charge. In order to confirm the positive charge you must bring the rod 'X' near the cap of a positively charged electroscope. If the leaves diverge more, then 'X' has positive charge.
If a postivively charged rod is brought near the knob of a positively charged electroscope the leaves of the electroscope will?
separate further
What would happen if you touched a knob of positivly charged electroscope with another positivel charged object?
They repeal each other because they are each positively charged.
Attraction and repulsion?
Attraction and repulsion, in physics means, is when two objects attract and repel one another. For example, an When a negatively charged rod is brought near an electroscope with negatively charged leaves, the leaves will repel. Same goes for when a positively charged rod is brought near an electroscope with positively charged leaves, the leaves will repel. But if a negatively charged rod is brought near an electroscope with positively charged leaves, the leaves will attract. Kind of like opposites attract, and likeness repels.
What would happen if you touch the knob of a positively charged electroscope with another positively charged object?
Like charges repel. Unlike charges attract. Therefore, you would expect them to repel each other.
What would you use to see if somthing is charged?
an electroscope is used to determine whether an object is charged or not. However, it will not tell if the object is positively or negatively charged.
How can you identify that which plate of capacitor is positively charged?
FOR tESTING THE SIGN OF CHARGE ON BODY, a device called GOLD LEAF ELECTROSCOPE. When the disc of a positively charged is touched with any plate of the charge capacitor. IF the divergence of gold leaf increases, then the plate is positively charged and if the divergence in the leaf decrease then the plate of the capacitor is nagatively charged.
An electroscope has been charged by induction with the help of a charged glass rod the charge on the electroscope will be?
negative
If one body is positively charged and another one is negatively charged free electrons tend to?
Remain in the positively charged body.
Can a postively charged body attract another positively charged body?
no
How can gold leaf electroscope be used to detect an electric charge?
In order to identify the charge of a body we should use a charged electroscope. Let us say the electroscope is negatively charged. Now bring the unknown charged body 'X' near the cap of the electroscope. If the leaves diverge more the charge in 'X' must be negative. Suppose that the leaves close a little when 'X' is brought near 'C', then 'X' may have a positive charge or it may not have any charge. In order to confirm the positive charge you must bring the rod 'X' near the cap of a positively charged electroscope. If the leaves diverge more, then 'X' has positive charge.
Name the kind of electroscope that can recognized to be charged just by observation?
Type your answer here... electroscope switch electroscope square
What type of instrument can detect the presence of an electrical charge?
a gold leaf electroscope. if initially charged negatively, the deflection of the leaf with respect to the electroscope is increased if a negatively charged object approaches the electroscope. conversely if a positively charged object approaches, the deflection is reduced. the angle of deflection is proportional to the magnitude of the charge.
