Menu Close

What will happen if aluminium strips of an electroscope are replaced by plastic strips and a charged body is brought in contact with the metal clip?

What will happen if aluminium strips of an electroscope are replaced by plastic strips and a charged body is brought in contact with the metal clip?

If the metal clip used in the electroscope is replaced by an ebonite rod and a charged body is brought in contact with it, will there be any effect on the aluminium strips? Explain. Answer. Therefore, there will be no charge on the aluminium strips and no repulsion of the strips will occur.

When the aluminium strips in an electroscope are replaced by plastic strips what will happen?

Answer : If aluminum (metal) strips in an electroscope are replaced by plastic strips, the strips won’t spread out. As a result, we cannot test whether the object is carrying a charge or not. Note: Electric charge can be transferred from a charged object to another only through a metal conductor.

What happens to the aluminium leaf when the metal top of electroscope is touched with charged body?

When an object is touched with the metal top of an electroscope, its aluminium leaves diverge. Answer : If the leaves of the electroscope diverge or open up when an object is touched, the body is charged.

When the foil strips are apart are the kinds of charges on the strips the same or different?

The pieces of aluminium foil then have extra electrons on them and they both become negatively charged. Two objects which are negatively charged will repel each other and so the pieces of aluminium foil move away from each other.

What will happen to the charges after the aircraft has flown away from the cloud?

+ve charges will be induced on surface near the cloud(upper surface). To keep the plane neutral -ve charge of will be induced on lower side. This is because electrons will get repelled by the cloud and they will try to get as far as possible (lower side). Upper side will have electron deficiency and thus +ve charge.

Why the two aluminium strips move away from each other when we are bringing charged glass rod near to the electroscope?

The foil is moving because the foil and the conducting rod next to it are both negatively charged. When the negatively-charged rod is brought close to the electroscope, positive charges are attracted to it and negative charges are repelled away from it.

Why the gold leaves in an electroscope fold back when touched with hands?

(b) Gold leaves fold back when touched with hands because the charged is ‘earthed’.

What causes the foil leaves to move apart when the charged rod touches the metal ball?

Since the electroscope is a conductor, electrons move down to the leaves, being repelled byt he negative charge of the insulator. The sphere is thus temporarily positively charged. The extra negative charge in the foil leaves causes them to separate.

Why did we use aluminum foil inside the jar and not plastic?

The electrons flow through the copper wire to the aluminum foil. The movement of electrons is called conduction. The ground distributed the electrons away from you and the metal inside the electroscope no longer had a charge. With no charge, they no longer repel and hang limp in the jar.