Measurements

Explanation of question 18

Five 270 carbon resistors, each of rating 2W, are connected in parallel to form a dummy load. The dummy load resistance and rating will be respectively

1. 1,350,10W
2. 270, 2W
3. 54,10W
4. 54, 2W

The answer is :- 3 Five 2W resistors in parallel will give a power handling capacity of 10W. Five 270 resistors in parallel form an equivalent resistance of 270/5 = 54