Version 4.1
SHEET 1 2680 952
WIRE 208 64 32 64
WIRE 256 64 208 64
WIRE 448 64 336 64
WIRE 464 64 448 64
WIRE 32 128 32 64
WIRE 464 144 464 64
WIRE 32 256 32 208
WIRE 464 256 464 208
WIRE 464 256 400 256
WIRE 400 272 400 256
FLAG 32 256 0
FLAG 400 272 0
FLAG 208 64 Vin
FLAG 448 64 Vout
SYMBOL cap 480 144 M0
SYMATTR InstName C1
SYMATTR Value 10n
SYMBOL res 352 48 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 100R
SYMBOL voltage 32 112 R0
WINDOW 3 -298 97 Left 2
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR Value PULSE(0 10 1u 10n 10n 5u 10u)
SYMATTR InstName V1
TEXT 0 296 Left 2 !.tran 0 50u 0 10n
TEXT 664 104 Left 2 ;click on run\nthen click on Vin to plot its voltage\nthen click on Vout to plot its voltage.\nclick on the plot window, then on plot settings/add plot pane.\nthen click on R1 to plot its current
TEXT 656 56 Left 4 ;Instructions
TEXT 352 -80 Left 5 ;RC sine wave cct.
TEXT 688 488 Left 2 ;The voltage source is a water tank, the capacitor is a bucket, and the resistor is a length of hosepipe,\nHose connections are near the bottom of the tank and the bucket and so are always covered by water.\nfor the hosepipe, small diameter is high resistance, and big diameter is low resistance.\nThe water level is voltage, \nThe water tank is big so that its level is unaffected by the flow of water to and from the bucket.\nWe can lift the water tank up and down, this is like varying the voltage.\n \nas the voltage source goes up and down by 10V, we raise the water tank up and down by say 10cm.\nwhen we raise or lower the tank, the water flows to and from the bucket,\nthis equalises the water height in the bucket, to the water height in the water tank.\nin the same way when the voltage source changes, the current flows to and from the capacitor \nthis equalises the voltage level in C1 to the voltage source.
TEXT 680 264 Left 4 ;Circuit description,
TEXT 672 296 Left 2 ;the capacitor (C1) stores something called charge, which is an accumulation of current (I).\nthe flow of current is set by the value of the resistor (R1) and the voltage across the resistor (Vin - Vout).\nThe voltage source V1 creates the input voltage, I have set it up as a square wave.
TEXT 696 432 Left 4 ;an analogy using water tanks, buckets, and hosepipes !