Electrical – voltage divider two unknown resistors

resistorsseriesvoltage divider

circuit

The circuit is made of a variable resistor of 10kΩ value and two fixed resistors R1 and R2 .The output voltage V0 should be variable from 2V to 9V, i have to calculate the values of the two fixed resistors R1 and R2. I don't know how to start.

Best Answer

A big hint (since this is a homework question).

The voltage varies from A to B, so the variation is (B - A) volts. That should give you a good idea as to what the current through the divider must be...