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smileandbehappy
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Hi, I have been set a sheet of questions for homework and there are two which I cannot do. Any help you could give would be greatly appretiated.
1)
I have tried doing this but keep getting into cycles of inputting equations into it and just going around in circles.
2) This is a two part question and I have done the first part.
I = V/R
I = 6/(5.6*10^-3)
I = 1.071*10^-3A
I don't have a clue how to do this!
1)
The time constant "t" of the discharge of a capacitance C through a resistacne R is given by: t = RC.
Show that the unity of quantity RC is seconds.
I have tried doing this but keep getting into cycles of inputting equations into it and just going around in circles.
2) This is a two part question and I have done the first part.
Circuit diagram showing: 6V potential difference, 4700*10^-6F capacitor, 5.6*10^-3 ohm resistor resistor.
a) Show that the initial value of the discharge current is about 1mA
I = V/R
I = 6/(5.6*10^-3)
I = 1.071*10^-3A
b) The time constant RC of the discharge circuit is about 26s.
Calculate the current in the discharge circuit after the switch has been fora time equal to RC.
I don't have a clue how to do this!
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