Describe how to make a tester for testing liquids that are weak conductors of electricity.
Dear Students ,
For testing liquids that are weak conductors of electricity, we can make a tester by using other means like the following:
• Use of an LED instead of a bulb
• Use of a magnetic compass needle
To make a tester using a magnetic compass needle:
• Pull out the cardboard tray from inside a discarded matchbox and place a small compass inside it
• Wrap an electric wire a few times around the tray.
• The cardboard tray with an electric wire around it is connected to the test circuit instead of an electric bulb to detect a weak current in a liquid
Regards
For testing liquids that are weak conductors of electricity, we can make a tester by using other means like the following:
• Use of an LED instead of a bulb
• Use of a magnetic compass needle
To make a tester using a magnetic compass needle:
• Pull out the cardboard tray from inside a discarded matchbox and place a small compass inside it
• Wrap an electric wire a few times around the tray.
• The cardboard tray with an electric wire around it is connected to the test circuit instead of an electric bulb to detect a weak current in a liquid
Regards