when combing you hair you scuff electrons from your hair onto the comb.is your hair then positively or negativley charged?How about the comb?
-Your hair is postively charged, while the comb is negatively charged
Why are the tires for trucks carrying gasoline and other flammable fluids manufactured to conduct electricity?
-This question I don't understand
If the tires do not conduct electricity, the truck cannot acqure a charge with respect to the ground, and no sparks will happen between truck and ground.
Some trucks used to drag a short chain behind them, barely touching the ground, for the same reason.
Why are the tires for trucks carrying gasoline and other flammable fluids manufactured to conduct electricity?
To determine whether the hair or the comb will be positively or negatively charged, we need to understand the process of charging by friction and the concept of electron transfer.
When you comb your hair, the friction between the hair and the comb causes electrons to transfer from one material to the other. Electrons are negatively charged particles. So, if electrons transfer from your hair to the comb, your hair will lose electrons and become positively charged. Conversely, the comb will gain the electrons and become negatively charged.
Now, let's move on to the question about why tires for trucks carrying gasoline and other flammable fluids are manufactured to conduct electricity.
Tires for trucks carrying flammable fluids are manufactured to be electrically conductive as a safety measure. This is to prevent the buildup of static electricity, which could potentially lead to dangerous sparks or ignition.
When a truck carrying flammable fluids moves, the friction between the tires and the road can generate static electricity. If this static charge builds up and is not dissipated properly, it could create a spark which can ignite the flammable fluids.
To prevent this, the tires are made conductive by incorporating carbon compounds or metallic wires into the rubber mix used for their construction. These conductive materials allow any static electricity to be safely discharged to the ground, reducing the risk of sparks and potential accidents.
In summary, tires for trucks carrying flammable fluids are manufactured to conduct electricity to prevent the buildup of static electricity and reduce the risk of sparks or ignition.