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Ask questions about the underlined parts of the sentence:
1.A static charge can be produced by rubbing a balloon against an objest such as a sweater.
How a static charge can be produced?
2.The area which a charged abject exters a force on other object is called an electric field.
How is called the area where a charged object exters a force on other objects?
3.Inside a capacitor are two metal plates separated by an insulator.
What is between two metal plates in a capacitor?
4.An electric current is flow of electric charge.
What flows of electric charge?
5.Metals are good conductors – they contain free electrons that can move easily.
What contains metals, which is good conductors?
6.In a circuit, the current flows from the negative electrode (cathode) to the positive (anode).
How the current flows in a circuit?
7.The coulomb (C) is the SI unit of electric charge.
What is the SI unit of an electric charge?
8.„Superconductors” are metals and some ceramics that become very good conductors at temperatures close to absolute zero.
When „superconductors” become very good conductors?
9.Several equations can be used to calculate the resistance (R), voltage (V), or current (I) across a conductor in an electrical circuit.
For what can be used several equations?
10.Electrons are propelled around a circuit by electromotive force (emf).
Where electrons are propelled by electromotive force?