Answer:
C.Battery is a source of potential difference in a circuit.
Explanation:
A battery is a source of electrons and positive ions which sets one of it's terminal (cathode) at negative potential and the other (anode) at positive potential. Hence a battery is a source of electricity(electrons) which sets a potential difference across the battery terminals.
Answer:
All the members within a class are by default are private. Private function in a class can access public function within a similar class. Private member formed the implementation of the class and also form the private interface of members within the class.
All the member of class can be access by function inside the class when it is declare as private.
For example:
class test
{
private:
int a; // when test:a is private
public:
test() : a() // a is accessible in test class
}
On your online bank you can add bills from your computer.
Answer: I think it is c
Explanation: hope this helps