A. 5 ohms
B. 10 ohms
C. 15 ohms
D. 55 ohms
Related Mcqs:
- Three identical resistors are first connected in parallel and then in series. The resultant resistance of the first combination to the second will be __________?
- With three resistances connected in parallel, if each dissipates 20 W the total power supplied by the voltage source equals __________?
- A current of 16 amperes divides between two branches in parallel of resistances 8 ohms and 12 ohms respectively. The current in each branch is __________?
- 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?
- 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 __________?
- Two copper conductors have equal length. The cross-sectional area of one conductor is four times that of the other. If the conductor having smaller cross-sectional area has a resistance of 40 ohms the resistance of other conductor will be __________?
- A closed switch has a resistance of __________?
- The hot resistance of the bulb’s filament is higher than its cold resistance because the temperature co-efficient of the filament is __________?
- Two resistances Rl and Ri are connected in series across the voltage source where Rl>Ri. The largest drop will be across __________?
- A resistance having rating 10 ohms, 10 W is likely to be a __________?
