NCERT Class VII Science Solutions: Chapter 14-Electric Current and its Effects Part 1

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Question 1:

Draw in your notebook the symbols to represent the following components of electrical circuits: connecting wires, switch in the ‘OFF’ position, bulb, cell, switch in the ‘ON’ position, and battery

Answer:

Images for Symbols of electrical circuit

Symbols of Electrical Circuit

Images for Symbols of electrical circuit

Question 2:

Draw the circuit diagram to represent the circuit shown in Fig.

This diagram shows the Circuit diagram

Circuit Diagram

This diagram shows the Circuit diagram

Answer:

Images for Diagram shows circuit diagram to represent the circuit

Diagram Shows Circuit Diagram to Represent the Circuit

Images for Diagram shows circuit diagram to represent the circuit

Question 3:

Fig shows four cells fixed on a board. Draw lines to indicate how you will connect their terminals with wires to make a battery of four cells.

As showing in images is a battery of four cells

A Battery of Four Cells

As showing in images is a battery of four cells

Answer:

To make a battery of cells, the positive terminal (+) of one cell always be connected to negative terminal (-) of another cell.

As showing in images is a battery of four cells

A Battery of Four Cells Connected

As showing in images is a battery of four cells