Question

The given image is the symbol of:

Answer 1

Hint
The image shown above represents the electrical device resistor. It is a device which reduces the electrical current through it. And this property is called resistance.

Complete step by step answer
There are various electrical devices and they all have their own electrical symbols.
Having an electrical symbol helps to represent the given electrical device in an electrical circuit. The image shown in the question is the symbol of the resistor.
Resistor is a device which obstructs the flow of current through it. And this property of resistors is called resistance. Every Material have some resistance, and this value of resistance is given by:
$\Rightarrow R = \rho \dfrac{l}{A}$
Where, $\rho$is the property of the material called resistivity,
And l is the length of the body.
And A is the area of cross-section of the body.
The SI unit of resistance is $\Omega$(ohm).
Higher the resistance of a body, lower the current will flow through it and vice-versa.

Note
Sometimes we see a symbol like this:

This is the symbol of a device called rheostat or variable resistor. It is a device whose resistance can be varied by a sliding contact.