Determine the values of load current and output voltage respectively for the below schematic of voltage to current converter with grounded load by assuming that the op-amp is nulled at the inception.
a. 0.3 mA & 4 V
b. 30 mA & 4 V
c. 300 mA & 2V
d. 30 mA & 2V
Correct Answer : a. 0.3 mA & 4 V
Explanation :Given data :
From the circuit , the given values are:
V
in= 10 V, R = 30 K & V
1 = 2V
We know that load current depends on input voltage resistance R in case of voltage to current converter.
Thus, I
L = V
in / R
= 10 V / 30 K
= 0.3 mA
However, the output voltage (V
o) of voltage to current converter is given by,
V
o= 2 V
1 =2 x 2 = 4V.
