Part 20 (1/1)

Now e theure 9 If you make and break the current to the second coil, you will build up and collapse a ain induce a current in it You will see the coain

These last two experienerator works, producing electric current by induction as a coil-wound rotor revolves within a netic field

What Did You Learn?

What does every current-carrying wire have around it? How does this help us to measure electricity? How sensitive are electrical instruments?

What is the difference in voltage between (a) a large and a small dry cell? (b) batteries connected in series and in parallel? (c) your original connection and the reverse of it? What similarity does the test for induced current shoeenof a direct current?

Demonstrations You Can Give

Show others how your galvanoscope can detect: whether a battery is producing current, which way the current is flowing, and whether a current is strong or weak Denetism

For More Information

Ask your power supplier representative to show you soive you a brief explanation of how they work Ask hiive you a demonstration of a split-core ammeter