What are the possible reasons why we would use multiple resistors instead of just one resistor with a resistance equal to the equivalent resistance of the circuit?

Question

I. A resistor of the required size is not available

II. Required size are always cheap and available

III. We need to dissipate the heat generated

IV. We want to minimize the cost of resistors

A. I, III, IV

B. II, IV

A. I, III

C. I,II,III

Answer 1

The answer is III.

Several resistors in series or parallel or a combination may be used to provide the same resistance as a single resistor.

The heat dissipated can be shared by several resistors instead of being dissipated by one resistor.