4 protons the number of proton has the same number of electron [which is the same as atomic number]
Answer:
d. add another d-cell to the circuit
Explanation:
To make the electromagnet pick something, the student should add another d-cell to the circuit.
Simply, the electromagnet set up is generating very weak magnetic fields.
- To produce an electromagnet, there must be an interaction between electric fields an conductor.
- As the wire turns around in the vicinity of the electric field, it induces magnetism.
- The number of turns of wire here is pretty considerable.
- But the electric field is very weak.
- Additional d-cell in the circuit will circumvent this problem
Answer:
The nervous system
Explanation:
The nervous system send messages from the brain to the muscles to move.
Answer:
change of color
Explanation:
when a substance undergoes a change of color it is an indication that it was chemical
