Physics Homework: What is the potential difference across the three resistors?

Q) Three resistors, 26, 48, and 76 , are connected in series, and a 0.49 A current passes through them. What is

(a) the potential difference across the three resistors(in V)?

Sol:

Since the resistances are connected in series, the equivalent resistance will be R_eq = 26+48+76 = 150ohms

Total Voltage, V= I*R_eq = 150*0.49 = 73.5V

1) Potential difference across 26 = 26*0.49= 12.74V

2) Potential difference across 48 = 48*0.49= 23.52V

3) Potential difference across 76 = 76*0.49= 37.24V