The power rating of a 400 ? resistor is 0.25 W. What is the maximum voltage?
A) 10 V
B) 20 V
C) 30 V
D) 40 V
E) 50 V
A
You might also like to view...
While the red color of the Martian surface testifies to the presence of lots of iron, the weak magnetic field suggests it may not have a molten core anymore
Indicate whether the statement is true or false
How long does it take our solar system to complete one orbit around the Milky Way Galaxy?
A) 100 million years B) 1 million years C) 230 thousand years D) 10 thousand years E) 230 million years
A block is projected with speed v across a horizontal surface and slides to a stop due to friction. The same block is then projected with the same speed v up an incline where is slides to a stop due to friction. In which case did the total mechanical energy of the block decrease the least?
a. This problem cannot be solved since it was not indicated whether the horizontal surface and the incline both had the same coefficient of kinetic friction. b. The case on the horizontal surface had the least decrease in total mechanical energy. c. The case on the inclined surface had the least decrease in total mechanical energy. d. In both cases the decrease in mechanical energy was the same.
Circular Motion of Charges: A doubly charged ion with speed 6.9 × 106 m/s enters a uniform 0.80-T magnetic field, traveling perpendicular to the field. Once in the field, it moves in a circular arc of radius 30 cm. What is the mass of this ion? (e = 1.60 × 10-19 C)
A. 11 × 10-27 kg B. 6.7 × 10-27 kg C. 3.3 × 10-27 kg D. 8.2 × 10-27 kg