False.
1. Electricity involves the movement of electrical charges. The most common case is the movement of electrons (a negative charge), but other possibilities exist, such as movement of charges through ions (positive or negative), or holes (positive).
2. Even stating that electricity IS a flow of charged particles is a gross and misleading simplification. An electrical current INVOLVES the flow of charges, but that does not fully describe an electrical current.
zero= false, non-zero=true
A positive logic system will output true only when the input is true. A negative logic system will output true only when the input is false. The NOT logic gate is an example of a negative logic system. That is, NOT( false ) will output true.
True
True AND False OR True evaluates to True. IT seems like it does not matter which is evaluated first as: (True AND False) OR True = False OR True = True True AND (False OR True) = True AND True = True But, it does matter as with False AND False OR True: (False AND False) OR True = False OR True = True False AND (False OR True) = False AND True = False and True OR False AND False: (True OR False) AND False = True AND False = False True OR (False AND False) = True OR False = True Evaluated left to right gives a different answer if the operators are reversed (as can be seen above), so AND and OR need an order of evaluation. AND can be replaced by multiply, OR by add, and BODMAS says multiply is evaluated before add; thus AND should be evaluated before OR - the C programming language follows this convention. This makes the original question: True AND False OR True = (True AND False) OR True = False OR True = True
could be negative or positive"negative logic" just means, that the level used by "positive logic" within that logic family for False, is instead used for "True" and vice versa.
True
True. The atoms have a proton which has a positive charge and there are same number of electrons with a negative charge. Those two charges cancel each other out and the charge becomes zero. The neutrons do not have any charge.
False. When an atom loses electrons, its charge becomes positive since electrons have negative charges. Compare it to: 0 - -1 = 1
False, electrons are negatively charged whereas neutrons have no charge. An electron is of opposite charge to a proton which has a positive charge.
True. Lightning is a natural example of static electricity, which occurs when there is a build-up of electrical charge in the atmosphere that discharges in the form of a lightning bolt.
True. A polar molecule has regions of positive and negative charge due to an uneven distribution of electrons, leading to a separation of charges within the molecule. This creates a partial positive side and a partial negative side.
The statement is not correct. Electricity is generated by the movement of the charges. So if the charges are static, i.e if they do not change their position then how electricity/current will be produced.
True
It is true.
True. The product of 21 negative numbers will be negative.
false
false