There are electrical appliances like heaters , fans refrigerators and coolers .These run on electricity supplied to our homes from the power station through the mains .There is another set appliances that runs on cells , like torches , toys , alarm clocks and mobile phones . You can easily handle appliances that run on cells .However , you may get bad shock if you touch an electrical socket or a live wire attached to the mains . ______ supply a very small amount of electrical energy .

Options

A. Battery
B. Main supply
C. Dry cell
D. none of these.

Explanation

**Step-by-Step Solution:**

1. **Understanding Electrical Appliances:**
- There are two main types of electrical appliances: those that run on mains electricity (like heaters, fans, refrigerators, and coolers) and those that run on cells (like torches, toys, alarm clocks, and mobile phones).

2. **Mains Electricity:**
- Appliances connected to the mains receive electricity directly from the power station, usually at a voltage of 220V. This high voltage can be dangerous, and touching live wires or electrical sockets can result in a severe electric shock.

3. **Battery-Operated Appliances:**
- Appliances that run on cells, such as batteries, provide a lower voltage and are generally safer to handle. Examples include torches and toys.

4. **Identifying the Blank:**
- The question asks to fill in the blank with the correct term that describes what supplies a very small amount of electrical energy.

5. **Evaluating Options:**
- Option 1: Battery - A battery consists of multiple cells and can supply more energy than a single cell.
- Option 2: Main Supply - This provides a high amount of electrical energy (220V).
- Option 3: Dry Cell - A dry cell is a type of battery that supplies a small amount of electrical energy.
- Option 4: None of these - This option does not apply.

6. **Conclusion:**
- The correct answer is "Dry Cell" because it supplies a very small amount of electrical energy compared to mains electricity or a battery made up of multiple cells.

**Final Answer:**
Dry cell supplies a very small amount of electrical energy.

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