i really don't understand coulombs.
i quite understand joules though.
and how many joules does a .08 or .8 amp in a 100,000 volt carry? you can correct me if im wrong, i'm still new to this subject after all, thanks.
i quite understand joules though.
and how many joules does a .08 or .8 amp in a 100,000 volt carry? you can correct me if im wrong, i'm still new to this subject after all, thanks.
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Amps is the unit for current, and joules is the unit for energy. Even i was confused by this electricity stuff in my early days but i soon understood.
Coulombs are just charges, you can imagine them as marbles which can absorb energy, moving about the circuit.
The number of coulombs which pass the wire in one second, is the current. So if 10 coulombs pass the wire in 1 second, the current is 10 Amps.
The voltage is the energy given to each coulomb. So, a 10V cell give 10 joules of energy to each coulomb.
If a question asks, to calculate the energy supplied by a heater, you do: current*voltage*time. By doing current*voltage, you will find out the energy present in the circuit in 1 second. By multiplying it with time, you will find out the total energy supplied in that much time by the heater. Thus you can calculate energy!
We'll look at your question practically: 0.8 amps means that 0.8 coulombs are passing through the wire in one second. 100000 volts means that to each coulomb, we are giving 100000 joules of energy. We multiply current by voltage. 0.8* 100000= 80000. This means that in one second, the circuit supplies 80000 Joules of energy. Now you have to tell me how long the circuit was on. If it was on for 10 seconds, the circuit would have supplied a total of 800000 Joules of energy in that much time.
Hope it makes sense!
Coulombs are just charges, you can imagine them as marbles which can absorb energy, moving about the circuit.
The number of coulombs which pass the wire in one second, is the current. So if 10 coulombs pass the wire in 1 second, the current is 10 Amps.
The voltage is the energy given to each coulomb. So, a 10V cell give 10 joules of energy to each coulomb.
If a question asks, to calculate the energy supplied by a heater, you do: current*voltage*time. By doing current*voltage, you will find out the energy present in the circuit in 1 second. By multiplying it with time, you will find out the total energy supplied in that much time by the heater. Thus you can calculate energy!
We'll look at your question practically: 0.8 amps means that 0.8 coulombs are passing through the wire in one second. 100000 volts means that to each coulomb, we are giving 100000 joules of energy. We multiply current by voltage. 0.8* 100000= 80000. This means that in one second, the circuit supplies 80000 Joules of energy. Now you have to tell me how long the circuit was on. If it was on for 10 seconds, the circuit would have supplied a total of 800000 Joules of energy in that much time.
Hope it makes sense!
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By definition, one you should learn, 1 amp = 1 Coulomb/sec; and that's the relationship.
And of course Joules have no relationship unless they are a measure of electrical energy where 1 Joule = 1 volt.ampere.second = 1 Watt.second
Note 1 Watt = 1 Joule/second = 1 volt.ampere.
You can see that we cannot answer your questions as the Joules depends in part on how long the 8,000 or 80,000 volt.amperes are running. Best we can say is that 8 KW and 80 KW are the power for your question.
And of course Joules have no relationship unless they are a measure of electrical energy where 1 Joule = 1 volt.ampere.second = 1 Watt.second
Note 1 Watt = 1 Joule/second = 1 volt.ampere.
You can see that we cannot answer your questions as the Joules depends in part on how long the 8,000 or 80,000 volt.amperes are running. Best we can say is that 8 KW and 80 KW are the power for your question.