Question

1. the physical appearance of capacitors________. a is impossible to distinguish b is operationally significant c varies d is constant

Explanation:

Capacitors come in various types such as ceramic capacitors (small, often disc - shaped), electrolytic capacitors (usually cylindrical with a polarity marking), tantalum capacitors (various shapes but often with a distinct appearance), etc. Their physical appearance is not constant (eliminating option d). It is also not impossible to distinguish (eliminating option a) as different types have different visual characteristics. And the physical appearance itself (like shape, size in some non - critical cases) is not operationally significant in terms of the basic capacitance function (eliminating option b).

Answer:

C. varies