Question

Symbol of the closed switch is :
(A)

 (B)

(C)

(D)

Answer 1

Hint: The question is about the symbols of circuit elements. Refer to the symbols of circuit elements it will be easy to answer.

Complete step by step answer:
We should find the symbol of the closed switch. There are 4 symbols in which one symbol is correct.We will explain all the four symbols for your better understanding.
Option(A): In option A we can see that there are both positive and negative terminals. For a battery, there will be one positive and one negative terminal. There are four positive and four negative terminals in the question. So it represents four batteries in series. So Option (A) is not correct.
Option (B): In Option B there is a wire and there are two points connected so that current can flow through the wire. A wire and two points are symbols of a switch. So it is a closed switch symbol since current can pass through the wire. Therefore Option (B) is correct
Option(C): In Option C there are wires and two points that are not connected so that current cannot pass through them. It is also a symbol of a switch. It is an open switch because the current cannot pass through the wire.
Therefore Option (C) is not correct
Option (D): In Option (D) there is one positive terminal and one negative terminal. For a single battery, there will be one positive and one negative terminal. So is a symbol of a single battery. Therefore Option (D) is not correct.

Note:Remember that a cell is represented by a single positive terminal and negative terminal while a battery is represented by alternate positive and negative terminals because it is a combination of cells.Also,don’t get confused with symbols of closed and open switches as both look similar.