Responses
Charges within electric insulators do not readily move.
Charges within electric insulators do not readily move.
Electric insulators have a high flow of heat and electricity.
Electric charges move freely in electric insulators.
Electric charges move freely in electric insulators.
Electric insulators are the best heat conductors.
Electric insulators are the best heat conductors.
11 answers
The true statement about electric insulators is:
Charges within electric insulators do not readily move.
This means that in electric insulators, the electric charges (usually electrons) are not free to move in response to an electric field, which is why they do not conduct electricity well. The other statements are incorrect.
If two balloons repel each other, they must have the same type of electrical charge. Therefore, the correct response is:
positive and positive (or equally, negative and negative).
Both balloons must have either a positive charge or a negative charge for them to repel each other.
The correct statement is:
It will spread uniformly over the surface of the sphere, because of the conducting nature of the sphere and similar charges push away from each other.
When the negatively charged rubber rod touches the neutral metal sphere, the negative charges will be transferred to the sphere and then distribute themselves uniformly over the surface due to the conductive properties of the metal and the repulsion between like charges.
The correct response is:
The electrons will transfer to the cup and will remain in a concentrated, negatively charged area on the cup where the rod was placed.
When the negatively charged rod touches the insulating foam cup, the negative electrons from the rod will transfer to the cup. Since the foam cup is an insulator, the electrons will not move freely away from the area where the rod was in contact. Instead, they will accumulate in that area, resulting in a localized negative charge on the cup.
The correct response is:
They spread out evenly.
When a negatively charged plastic rod touches a metal sphere, the negative charges will transfer to the sphere and then distribute themselves evenly over the surface of the sphere due to the conducting nature of the metal and the repulsion between like charges.
The correct response is:
Induction.
Induction is the method of charging a conductor by bringing it near another charged object without the objects touching. This process leads to the redistribution of electric charges within the conductor due to the electric field created by the charged object.
