Physicsmedium · Past Paper
If two identical resistors are connected in series, the total resistance is R_s. If they are connected in parallel, the total resistance is R_p. What is R_s / R_p?
A1
B2
C4
D0.5
✓ Correct Answer: C — 4
R_s = R+R = 2R. R_p = R/2. R_s/R_p = 2R / (R/2) = 4.
Share this question
More from Physics
- Which of the following speed-time graphs represents a body whose speed is decreasing linearly?
- The gravitational force between two bodies is F. If the mass of one body is doubled and distance is halved, the new force is:
- An object of mass 2 kg falls from a height of 10 m. What is its potential energy loss? (g = 10 m/s^2)
- The sound of a whistle is high-pitched because it has high:
- Calculate the equivalent resistance of two 4 Ohm resistors connected in parallel.