- #1

johnsholto

- 10

- 0

A type of black box is connected to an AC/DC circuit. The values of U and I are given in the DC circuit, the value of R is not. The values of U and R are given in the AC circuit, the value of I is not.

In the DC circuit the values of U and I are.

U=0 I=0

U=1 I=360

U=2 I=500

U=3 I=650

U=4 I=750

U=5 I=850

Now, R is calculated using U=R*I, right?

So the values of R would be:

R0=-

R1=1/360

R2=1/250

R3=3/650

R4=2/375

R5=1/170

In the AC circuit the values of U and R are:

U=0 R=0

U=1 R=2.7

U=2 R=3.3

U=3 R=4.5

U=4 R=5.3

U=5 R=5.8

The values for I would be according to U=R*I:

I0=-

I1=0.37

I2=0.6

I3=0.66

I4=0.75

I5=0.86

Now, how do I determine the type of resistor that has been used in these circuits? I assume that it is not a capacitor as there is current flow in the DC circuit.

Furthermore, the values of I in the AC circuit is approximately the value of I in the DC circuit*1/1000.