What is..
simple questions..
what are...
Calculations.
How is..
100
how do you find the current(I) if the ohms (Ω) and volts (v) were given?
divide
100
What is a ammeter?
a device used to measure electric current.
100
what is an electron?
A negatively charged particle
100
If the current is 32 and the resistance is 8, what is the ohm?
256
100
What does a switch do?
opens and stops the flow of energy
200
what is the potential difference in a battery?
the sum of the potential differences across each cell
200
What do lightning rods do?
What do lightning rods do? it is used to minimize dangers from lightning and is often placed on top of buildings to guide a safe pth for the lightning to follow to the ground.
200
What is the relationship between volts and resistance?
If the resistance is high then the number of volts is low , if the number of volts is high then the resistance is low
200
if the ohm is 78 and the current is 3, what is the resistance?
26
200
in our circuit today, we will be using batteries as our power source. what type of current do batteries provide? Direct or alternating?
Direct current
300
What is a proton?
A positively charged particle in the atoms nucleus
300
who created the ohms law? 1) Peter Ohm 2) George Ohm 3) Fred Ohm
George Ohm
300
T or F ? The internal resistance of a wire decreases by increasing its cross-sectional area, lengthing the wire, and increasing its temperature.
false. The internal resistance of a wire (increases )by (decreasing) its cross-sectional area, lengthing the wire, and increasing its temperature.
300
If the resistance is 4 and the ohms is 148, how much is the current?
37
300
how is the volts divided from the battery to the lamps in a parallel circuit?
all of the lamps will have the Same amount of volts as the battery
400
non-metals
For a material that has alot of resistance what does it have to be made of?
400
how does a battery work?
Electrons want to go to the positive side, the only place the battery can go is the cathode, electric flowing will power the device,when circuit is closed the electrons will be able to get to the cathode
400
what may happen when too much current flowes through a conductor?
The temperature will increase
400
If the ohms is 104 and and the resistance 8 what is the current?
13
400
how is AC produced?
generators at electric geenerating stations
500
what is the unit of measurement to calculate potential difference?
volts
500
what is required for electricity to flow?
a source of electrical energy
500
What are the differences between direct and alternate currents?
Direct Current is the flow of electrons in one direction through an electric circuit Alternate Current is the flow of electrons that alternate in one direction in an electric circuit
500
If the current is 7 and the resistance is 191 what's the ohms?
1337
500
What is the three laws of electrostatics?
•When one material is negatively charged and one is positively charged, they attract. •When both are of the same charge, they repel. •When both are neutral, nothing happens.
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