Electricity: Circuits and their Components

Choose the incorrect statement.

A student forgot to remove the insulator covering from the connecting wires while making a circuit. If the lamp and the cell are working properly, will the lamp glow?

Draw a circuit diagram for a simple torch using symbols for electric components.

Suppose the '+' and '–' symbols cannot be read on a battery. Suggest a method to identify the two terminals of this battery.

You are given six cells marked A, B, C, D, E, and F. Some of these are working and some are not. Design an activity to identify which of them are working. (i) List the items that you require. (ii) Write the procedure that you will follow. (iii) With the items, carry out the activity to identify the cells that are working.

Suppose that due to some problem, the power supply is disrupted in your area for two days. List out which actions from your daily life you would not be able to do.

Using a solar panel as a source of electrical energy, make a circuit to run a toy fan.

Visit an electrical items shop. With the help of the shopkeeper, identify the various types of cells available. For each cell, also find out which device(s) it is used for. Prepare a report.

Prepare a list of objects in your home under three categories: (i) Objects which are electrical insulators only (ii) Objects which are electrical conductors only (iii) Objects which are made of both, whose some parts are insulators and some electrical conductors