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Why does the length of wire affect the resistance?
the longer the wire, the more mass the electrons have to travel thru. the more they have to travel thru, the more resistance. (and the resultant heat) the more electrically conductive the wire, the less resistance.
How do lighting rods protect buildings from lighting?
Lightning will follow the path of least resistance - the tallest objects and more conductive materials. Because the rod is placed to be higher up than the next highest point of the building, lightning will strike the rod and not the building. Because the rod is more conductive, the lightning can be channeled down the length of the building to be safely grounded.
Which coin is more conductive?
The nickel is more conductive.
Why a hair dryer has a high- heat setting with a lower resistance than the low-heat setting?
Because a higher resistance would have resulted in more heat loss, but the higher is he current, the more energy is lost to heat. Therefore, a lower resistance would release more heat.AnswerPower is equal to voltage squared divided by resistance. So, for a given voltage, the lower the resistance the higherthe power.
Does lower or higher specific heat hold more energy?
higher
Is boron conductive?
It is a poor conductor at room temperature, but becomes more conductive at higher temperatures.
Why does the length of wire affect the resistance?
the longer the wire, the more mass the electrons have to travel thru. the more they have to travel thru, the more resistance. (and the resultant heat) the more electrically conductive the wire, the less resistance.
Is shorter more conductive or longer more conductive?
Other things (cross-section, material) being equal, a longer piece of conductor has more resistance (i.e., less conductance) than a shorter piece.
Why does largest R dissipate more power?
That's not always the case. One formula for power dissipated is:P = IRSo, a higher resistance means that more power is dissipated - if the current is the same. The reason for this is precisely that resistance is related to the conversion of electrical energy into heat.However, if you put a higher resistance across a specific voltage, you'll get less power dissipation, not more, since less current will flow at a higher resistance.
How do lighting rods protect buildings from lighting?
Lightning will follow the path of least resistance - the tallest objects and more conductive materials. Because the rod is placed to be higher up than the next highest point of the building, lightning will strike the rod and not the building. Because the rod is more conductive, the lightning can be channeled down the length of the building to be safely grounded.
Which coin is more conductive?
The nickel is more conductive.
Which has higher conductivity ethanol or ethene?
ethanol is more conductive (4000000pS/m while ethene is less than 100) you can say that always alcohols or ketones which are more polar tha hydrocarbons without oxygen will be more conductive.
Does voltage basically measure how well a charge can flow through a less conductive material?
Voltage is electrical pressure, energy per charge, specifically joules per coulomb. The less conductive material represents more resistance. Resistance is the (in)ability to allow current flow, coulombs per second, or amperes. Since Ohm's law states that voltage is current times resistance, or resistance is voltage divided by current, we can say that resistance is joules per coulomb divided by coulombs per second, which in reduced terms is joules-seconds per coulomb squared. Its a matter of perspective, whether one considers voltage or resistance to be the "measure" of how well a charge can flow thorugh a less conductive material, but, to answer your question, yes, voltage measures how well a charge can flow through a less conductive material, because, in order to maintain constant current flow while increasing resistance, you have to increase voltage.
Can string conduct electricity?
Not unless its a string of some conductive material. Please be more specific on the actual type of string (what its made of).
Why is resistance more in parallel combination?
Resistors in parallel have a LOWER combined resistance than either alone, not a higher one.
Does lower or higher specific heat hold more energy?
higher
What is more conductive out of lead tin and solder?
Tin is more conductive. Lead is used to ease application.
