K
katkupkake
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Im in an AP Physics class and we are currently discussing physics.
There are a few things Im a bit confused about.
1. If a neutral object were to become positively charged, would the mass of the object increase or decrease? What if it were to become negatively charged?
2. When you rub a ballon to charge it, and it sticks to a wall, does that mean the wall is charged as well?
Now here is an actual homework question I dont understand how to do. (Im not looking for the actual answer. Just how to solve the problem, and what formula I'll need.)
Q: A glass rod rubbed with silk acquires a charge of +8.0*10^-10 C. (a) What is the charge on the silk? (b) How many electrons have been transferred to the silk?
I think the formula I'm supposed to use is q=ne (Quantization of Electric Charge)
Earlier in the chapter the book has a table...
--------------------------------------...
Particle | Electric Charge | Mass
--------------------------------------...
Electron | -1.602*10^-19 C | 9.101*10^-31 kg |
--------------------------------------...
Proton | +1.602*10^-19 C | 1.672*10^-27 kg |
--------------------------------------...
Neutron | 0 | 1.674*10^-27 kg |
--------------------------------------...
There is another chart which states the Relative magnitude of conductivity for Glass is 10^-12
**All answers are apreciated. Thanks very much**
There are a few things Im a bit confused about.
1. If a neutral object were to become positively charged, would the mass of the object increase or decrease? What if it were to become negatively charged?
2. When you rub a ballon to charge it, and it sticks to a wall, does that mean the wall is charged as well?
Now here is an actual homework question I dont understand how to do. (Im not looking for the actual answer. Just how to solve the problem, and what formula I'll need.)
Q: A glass rod rubbed with silk acquires a charge of +8.0*10^-10 C. (a) What is the charge on the silk? (b) How many electrons have been transferred to the silk?
I think the formula I'm supposed to use is q=ne (Quantization of Electric Charge)
Earlier in the chapter the book has a table...
--------------------------------------...
Particle | Electric Charge | Mass
--------------------------------------...
Electron | -1.602*10^-19 C | 9.101*10^-31 kg |
--------------------------------------...
Proton | +1.602*10^-19 C | 1.672*10^-27 kg |
--------------------------------------...
Neutron | 0 | 1.674*10^-27 kg |
--------------------------------------...
There is another chart which states the Relative magnitude of conductivity for Glass is 10^-12
**All answers are apreciated. Thanks very much**