A. 9 times
B. 1/9 times
C. 1/3 times
D. 3 times
Related Mcqs:
- Four wires of same material, the same cross-sectional area and the same length when connected in parallel give a resistance of 0.25 Q. If the same four wires are connected in series the effective resistance will be __________?
- Three resistances of 10 ohms, 15 ohms and 30 ohms are connected in parallel. The total resistance of the combination is __________?
- Two resistors are said to be connected in series when __________?
- Three 6 ohm resistors are connected to form a triangle. What is the resistance between any two corners?
- Copper wire of certain length and resistance is drawn out to three times its length without change in volume, the new resistance of wire becomes __________?
- Two resistances Rl and Ri are connected in series across the voltage source where Rl>Ri. The largest drop will be across __________?
- With three resistances connected in parallel, if each dissipates 20 W the total power supplied by the voltage source equals __________?
- The resistance of a parallel circuit consisting of two branches is 12 ohms. If the resistance of one branch is 18 ohms, what is the resistance of the other?
- The weight of an aluminum conductor as compared to a copper conductor of identical cross-section, for the same electrical resistance, is __________?
- Which of the following statement is true both for a series and a parallel D. C. circuit?
