The major difference between ground andvirtual ground is that virtual ground is only a:voltage referencepower referencecurrent referencedifference reference

In electronic circuits using operational amplifiers (op-amps), what is the purpose of a "virtual ground"?To increase the input impedance of the op-amp.To eliminate the need for power supplies.To create a real electrical connection to the Earth's surface.To provide a reference point for signal voltages

How do containers differ from virtual machines?1 pointContainers provide a guest operating systemContainers are faster and more lightweightContainers offer better portabilityContainers require less host resources

What's the difference between a real and virtual image?Group of answer choicesA real image exists; a virtual image doesn't really exist.A real image is the upside down; a virtual image is upright.A real image is upright; a virtual image is upside down.A real image can actually be seen; a virtual image cannot be seen.

Discuss the importance of virtual base class with the help of an example.

What are virtual functions?