Please help me?

i just need help with these 8 questions i did the other like 42





1. A current that flows in one direction is called





A. series


B. direct


C. alternating


D. generator


2. The unit used in measuring resistance in electrical circuits





A. Ohm


B. ampere


C. volt


D. conductor


3. Type of current where electrons flow in a steady stream





A. alternating


B. electric


C. chemical


D. grounding


4. Wire that is easily melted when the electrical current becomes too strong.





A. static


B. electrical


C. fuse


D. resistor


5. In our homes, this type of current is used





A. direct


B. alternating


C. static


D. generator


6. Unit used in measuring resistance in electrical currents





A. ampere


B. volt


C. ohm


7. What causes static electricity?





A. too many protons


B. too many electrons stick


C. materials are overly charged


8. Materials that discourage the flow of electricity is a(n)





A. insulator


B. wire


C. generator


D. current

Please help me?
A


C


B


D


C


B


B


D








alot





but not 100%
Reply:BABCBCCA





1) DC stands for direct current. An example is a battery with a positive and negative terminal. Household electricity is AC which stands for alternating current.





2) The units of resistance are Ohms. Volts are units of electric potential, Amperes are units of current, and "conductor" isn't an electrical unit.





3) Electrical current is the type of current that is a flow of electrons, it can be either alternating or direct.





4) A wire that melts in excessive electrical current is a fuse, when the wire melts it breaks the circuit. This is intended to protect the circuit from damage.





5) As I said before, homes use AC which stands for alternating current. Edison originally was a propoent of direct current, but alternating current becamse the standard because it could be transmitted more efficiently over long distances.





6) Units of resistance are Ohms, it seems strange that this question is repeated.





7) Static electricity is when a material builds up a charge, the charge can be positive (fewer electrons than protons) or negative (more electrons than protons). Static discharge occurs when there is sufficient charge built up to cause the electrons to jump from a negatively charged material to a positively or less negatively charged material.





8) Insulators are poor conductors of electricity. Wires are made from materials that are good conductors of electricity, usually a metal such as copper. Generators convert mechanical energy into electrical energy, generally by moving a conductor through a magnetic field.
Reply:1. A current that flows in one direction is called


B. direct current or DC


(see question 3)





2. The unit used in measuring resistance in electrical circuits


A. Ohm





3. Type of current where electrons flow in a steady stream


None of these. DC is the answer





4. Wire that is easily melted when the electrical current becomes too strong.


C. fuse





5. In our homes, this type of current is used


B. alternating





6. Unit used in measuring resistance in electrical currents


should be "Unit used in measuring resistance in electrical circuits"


C. ohm





7. What causes static electricity?


None of these. electrons are dislodged by physical actions, ie, by rubbing.





8. Materials that discourage the flow of electricity is a(n)


A. insulator