Answer: 12.5 grams.
Explanation:
You can find the amount of pure substance remaining by using the half-life formula:
Where t is the amount of time, and t2 is the half life of the substance.
Substituting our values for the variables, we get this equation:
After 18 hours, there will be 12.5 grams of the substance remaining.
Answer:
As the electrons flow through the wire, <em>electric current </em>is generated around the wire.
Explanation:
The rate of flow of charged particles in a given time is termed as the flow of current. Mostly the charge carriers are termed as electrons in a conductor. So the flow of electrons or movement of charged particles in a given time is the generation of electric current in that current. As the ratio of charge to time at which the charge is moving from one point to another is termed as the current flow in that time.
Thus, in the present case of electrons flowing in that wire will lead to generating of electric current in the opposite direction around the wire.