Question

What component is this:
                         

(A) capacitance
(B) resistance
(C) battery
(D) inductance

Answer 1

Hint: To understand the knowledge of a component, we should know its characteristic features. We will write the characteristic features of this component and then write the features of the components given in our problem. Then, by comparing them we will be easily able to identify our component.

Complete answer:
We will write the characteristic features of the component shown in the image as well as the components given in options. This can be done as follows:
The component given to us in image has two ends for connection. It also contains a few color-coded bands. Here, the number of bands is equal to five. The component does not have a point or location which can act as a source of charge, that is, it is a passive component.
Now, let us see the properties of the components given to us in the option.
(A) Capacitance: It is also a two-end device. It has a cylindrical shape with both the ends on one of the two parallel surfaces of the cylinder.
(B) Resistance: It is an electronic component which has two ends for connection at opposite sides. It also has color coded bands on its surface and the number of these bands can vary depending on the nature of resistance used.
(C) Battery: It is two terminal devices that generate current in the circuit. It is an active component.
(D) Inductance: It is also a two-terminal component. They are made up of wires in the shape of a helix or a coil and do not have any color-coding features.
Therefore, from our above observation, it is clear that the given image is of a five-band resistor (or, resistance).

Hence, option (B) is the correct answer.

Note:
One should have the practical knowledge of all the components used in Physics at their level. This is not only important in solving questions but also in conducting practical tests of the different theories in the laboratory. It is also helpful in understanding Physics at higher levels.