Answer:
4. In order to maintain a steady flow of current in a conductor, a steady force must be maintained on the mobile charges
5.Current is the total amount of charge that passes through a conductor's full cross section at any point per unit of time
Explanation:
5 is correct because current has the formula I=q/t which is the amount of charge per unit time .
4. Current flow has to be maintained with some amount of force due to its involvement with moving of electrons.
Answer:
only statements 4 and 5 are correct.
4.In order to maintain a steady flow of current in a conductor, a steady force must be maintained on the mobile charges.
5. Current is the total amount of charge that passes through a conductor's full cross section at any point per unit of time.
Explanation:
statement 4 is true:
In order to maintain a steady flow of current in a conductor, a steady force must be maintained on the mobile charges.
Reason:
As we know there are three conditions for the current to flow as;
1. close loop
2. load or resistance
3. potential difference.
This potential difference is an example of a steady force which maintains a steady flow of current in a conductor.
Statement 5 is true:
Current is the total amount of charge that passes through a conductor's full cross section at any point per unit of time.
Reason:
As we know the definition of current is flow of charge per unit time i.e.
[tex]I=\frac{Q}{t}[/tex]
where Q is the total charge and t is the time required for the charge to flow through a conductor.
