Hi guys,
On the picture you see a circuit. The Voltage between the four 330 Ohm resistors must be 0 V. I draw it in this picture. When there is no Voltage i have no ampere between the 100K Ohm potentiometer and the first Dot between the two 330 Ohm resistor or ? I mean the ampere measurement with the red "" ?1 "" Symbol.
Is my calculation right?
U1 = 330 Ohm * 0,02A = 6,6V
U2 = 330 Ohm * 0,02A = 6,6V
U3 = 330 Ohm * 0,02A = 6,6V
U4 = 330 Ohm * 0,02A = 6,6V
U1,2= 6,6V+6,6V ? 13,2V
U3,4= 6,6V+6,6V ? 13,2V
U = 13,2V
My calculation for the second Question Symbol"" ?2 ""
I=U/R = 13,2V / 100000Ohm = 1,32*10^-4 A= 0,132 mA
( I ) for the circuit is then:
I = U/R = 13,2V / 328,9 Ohm = 0,04 A
Is my calculation right, or did I make a big mistake?