Question

QUESTION FOR PHYSICS EXPERT..... ANSWER MUST BE DETAIL;

Answer 1

Answer:

250 ohm and 1.25 V

Explanation:

as the current increase from 1 to 5 mA when R2 decreases from 1kohm to 0 ohm.

so R1 is equal to R2 / 4 = 250 ohm.

V is equal to 250 × 5 ×10^(-3) = 1.25 V