A.R
B.2 R
C.4 R
D.R2
E.4R2
Related Mcqs:
- Power required for a train weighing 200 Mg to move at a uniform speed of 60 Kmph up an incline of 1 in 200 is (Resistance due to friction is negligible)
- For car speed upto 100 kmph the mean deceleration in m/s2 taken as
- 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 temperature coefficient of resistance of a wire is 0.00125 per ?C. At 300 K its resistance is 1 ohm. The resistance of the wire will be 2 ohms at
- The resistance of a copper wire 200 m long is 21 Q. If its thickness (diameter) is 0.44 mm, its specific resistance is around __________?
- In electrical resistance welding when the current passes through the metal, the greatest resistance is
- If a wire conductor of 0.2 ohm resistance is doubled in length, its resistance becomes __________?
- The hot resistance of the bulb’s filament is higher than its cold resistance because the temperature co-efficient of the filament is __________?
- 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 __________?
- Overall heat transfer coefficient is proportional to the tube side volumetric flow rate raised to the poer 0.8. This holds only if the ration of the tube side film resistance to the total resistance is nearly
