When the charged plate or conductor of the electrophorus touches the knob the inner foil takes a positive charge, which induces a negative charge in the outer foil through the glass.
In the main, therefore, the negative charge of the resin is free to induce an opposite or positive charge on the lower surface and a negative charge on the upper surface of the plate.
Just why or how chemical action in a voltaic cell results in the production of a negative charge on the consumed plate is not known.
The carrying away of positive charges from a hitherto neutral body leaves that body with a negative charge.
By altering the distance between the plates until CD just begins to lose a negative charge, we find the velocity of the negative ion under unit electromotive intensity.
Thus, for example, in an aqueous solution of sulphuric acid, free ions of hydrogen H2 carrying a positive charge, and free ions of SO4 carrying a negative charge, exist.
To use the electrophorus, the ebonite is given a negative charge by striking it with fur or flannel.
If lines are drawn, starting from a positive charge and ending on a negative charge, such that the tangent to the line at any point is the direction of the electric force at that point, these lines are called lines of electric force.
One can also see that such an association of water molecules could leave a positive and a negative charge on the associated molecules, which would be ‹polarized› and more effective than the simple molecule would be.
They carried a positive electric charge that was twice as great as the electron’s negative charge.
The air, as is now known, has always present in it ions, some carrying a positive and others a negative charge, and those having the opposite sign to the charged body are attracted and tend to discharge it.
Lenard (33) found that when pure water falls upon water the neighbouring air takes a negative charge.
You might expect a "negative charge" to indicate fewer electrons than usual, not more.
A negative charge means that more electrons are present than usual.
Then the comb had a negative charge; that is, it had too many electrons--too many little particles of electricity.
If there are more than the usual number of electrons on an object, however, we say that it is negatively charged, or that it has a negative charge of electricity on it.
The above list will hopefully provide you with a few useful examples demonstrating the appropriate usage of "negative charge" in a variety of sentences. We hope that you will now be able to make sentences using this group of words.
