Write a note on:  i. Electric devices  ii. Electronic devices

i. Electric devices:

1. These devices convert electrical energy into some other form. 

2. Examples: Fan, refrigerator, geyser etc. Fan converts electrical energy into mechanical energy. A geyser converts it into heat energy. 

3. They use good conductors (mostly metals) for conduction of electricity. 

4. Common working range of currents for electric circuits is milliampere (mA) to ampere. 

5. Their energy consumption is also moderate to high. A typical geyser consumes about 2.0 to 2.50 kW of power. 

6. They are moderate to large in size and are costly.

ii. Electronic devices:

1. Electronic circuits work with control or sequential changes in current through a cell. 

2. A calculator, a cell phone, a smart watch or the remote control of a TV set are some of the electronic devices. 

3. Semiconductors are used to fabricate such devices. 

4. Common working range of currents for electronic circuits it is nano-ampere to µA. 

5. They consume very low energy. They are very compact, and cost effective.