How many electrons must be removed from an object for it to have a charge of 1.0 C?

To illustrate the magnitude of 1 Coulomb, an object would need an excess of 6.25 x 1018 electrons to have a total charge of -1 C.

When the positive charge (+) and the negative charge (-) on an object are balanced there is no net charge on that object such object are called?

When the positive charge and negative charge on an object are balanced the object is​ neutral. Explanation: All substances contain an electric charge, but the balance between positive and negative charges result in a net charge of zero. This means that the object is neutral.

Does a positive charge cancel out a negative charge?

A proton carries a positive charge (+) and an electron carries a negative charge (-), so the atoms of elements are neutral, all the positive charges canceling out all the negative charges.

How much positive and negative charge is there in a cup of water?

Therefore, a water molecule has an equal amount of positive and negative charge which is 1.33×107C.

What is an Electroscope and how does it work?

The electroscope is an early scientific instrument used to detect the presence of electric charge on a body. It detects charge by the movement of a test object due to the Coulomb electrostatic force on it. The amount of charge on an object is proportional to its voltage.

How much positive and negative charge is there in a 200 gm cup of water?

One molecule of water has 2 hydrogen atoms (2 protons) and one oxygen atom (8 protons). So 250 g water will have 10 x 8.36 x 1024 = 8.36 x 1025 protons. So one cup of water has 13.3 mega coulomb positive and negative charge, so that the overall charge is zero…

What happens when a positive and negative charge is applied?

When a positively charged object is brought near the electroscope (Fig. 6), negative charges in the metal of the scope move toward the positive object, causing the leaves to have a positive charge, and the leaves repel each other. The stronger the charge, the greater the separation of the leaves.

How do you remove a negatively charged object from an electroscope?

While the negatively charged object is still near the electroscope, remove your finger, disconnecting the electroscope from ground. Some of the electrons have left the electroscope through the ground wire. The leaves will move toward each other. Finally, move the negatively charged object away from the electroscope.

How do you test the charge of an electroscope?

The leaves will separate, indicating that the object you are testing is charged. While the object is near the electroscope, touch the terminal of the electroscope with your finger. This grounds the electroscope.

What happens when you put an electroscope on a leaf?

If you bring a negative object near the electroscope, the electrons in the scope will be repelled toward the leaves, balancing the charge. The leaves will move toward each other. If you bring a positive object near the electroscope, it will attract the electrons toward the terminal.