Imagine four resistors: R1 = R2 = 600. O, and R3 = R4 = 300. O. a. (1 pt.) R1, R
ID: 1691319 • Letter: I
Question
Imagine four resistors: R1 = R2 = 600. O, and R3 = R4 = 300. O.a. (1 pt.) R1, R2, and R3 are all connected in parallel; then R4 is connected in series with them; and finally the combination of
all four resistors is connected to a 25.0-V DC emf. Draw a
schematic diagram for the entire circuit, at right:
b. (4 pts.) Calculate the equivalent resistance, Req, of the
four resistors. Show ALL of your work.
c. (3 pts.) Find the current passing through the DC voltage supply. Show your work.
d. (3 pts.) Find the total power dissipated by all 4 resistors. Show your work.
e. (1 pt.) Which of the four resistors have identical currents passing through them?
A. R1 and R2 only D. R3 and R4 only
B. R1 and R4 only E. R1, R2, and R3
C. R2 and R4 only F. R1, R2, R3, and R4
f. (1 pt.) Which of the four resistors have identical voltage drops (i.e, potential differences) across them?
A. R1 and R2 only D. R3 and R4 only
B. R1 and R4 only E. R1, R2, and R3
C. R2 and R4 only F. R1, R2, R3, and R4
a. (1 pt.) R1, R2, and R3 are all connected in parallel; then R4 is
Explanation / Answer
-----R1----- series | | ---------R4-------|----R2------|-------- | |----R3------ | | I do not know how to draw the circuit using | parallel | this program | | 25 VDC battery | |-------------------------------------------| b) R1, R2, and R3 are in parallel therefore : 1/(1/600+1/600+1/300)=150 ohms + 300 ohms = 450 ohms total c) total amps : 25 v / 450 ohms = 0.05556 amps d) total power : I^2*R = 0.05556^2*450 ohms = 1.38889 watts approx 1.39 watts e) ans a R1 and R2 have same amps f) ans e R1 and R2 and R3 all have the same voltage drop of 25-16.667=8.333 volts