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Sliva [168]
3 years ago
8

Two students are discussing the flow of electricity. Student A says that voltage is a measure of the amount of electron flow in

a circuit. Student B says that power is the product of voltage and current. Which of the following statements is correct?
A. only student A is correct
B. only student B is correct
C. Both of the two students are correct
D. neither of the two students is correct
Computers and Technology
1 answer:
aivan3 [116]3 years ago
3 0

The answer is C: Both of the two students are correct.

Voltage in very simple terms is what makes electric charges move. It is that push or force that causes charges to move in an electrical conductor. Thus, student A is correct since voltage is a specific measure of potential energy that exists and is always relative between two points. On the other hand, power is the rate, per unit time, at which electrical energy travels. Electrical power (P) is the product of both voltage and current and not either one separately. It is a function of voltage and current. Thus, student B is also correct.

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What are the disadvantages of a server-based network? -lack of centralized network security - need for a network administrator -
tigry1 [53]

Answer:

The server-based network has some disadvantages such as hardware-accelerated which is affordable. Effective operating system with a network. Requires a dedicated system administrator.

Explanation:

  • When one of the databases drops south all the people are being affected and the whole network can even be downgraded.
  • Costlier to set up and maintain.
  • Expensive: - The expensive server hardware equipment, database software platforms, and network installation can require significant source host and system administrator.
  • Administrating:-  Appears to require continual servicing by the system administrator and admin must behave with the relevant skills to preserve also that network infrastructure tracking is an important requirement.
  • Server Failure: - The complete functionality of the system is hosting events. If the server crashes, the whole system will go away even though all the customers rely solely on the computer.
  • Heavy Traffic:- The server is the infrastructure for managing entire elements of the organization that offer the server overload. Internet traffic will be even more relevant as the customer must start their contact session from boot time to disconnect. System routing must be properly maintained otherwise it tends to lead this same computer as a crowded state or the standard processes will be affected.
5 0
3 years ago
What is computer and its features<br>​
dlinn [17]

Answer:

A computer is a machine that can be programmed to manipulate symbols.

Explanation:

Following are the features of PC (computer)

Processor  

speed  

reliability  

accuracy  

automation  

diligence  

consistency    

Random access memory (RAM)  

Operating system  

Graphics adapter and video RAM  

Monitor

3 0
3 years ago
Read 2 more answers
Suppose you have a file of data of approximately 100,000 personnel records (FYI, 213 = 8192 and 214 = 16384) using Social Securi
Natali [406]

Answer:

See explaination

Explanation:

The reasons why indexed sequential search structure is better are:

1. In index sequential search any field of the records can be used as the key. This key field can be numerical or alphanumerical.

2. Since each record has its data block address, searching for a record in larger database is easy and quick. There is no extra effort to search records. But proper primary key has to be selected to make efficient.

3. This method gives flexibility of using any column as key field and index will be generated based on that. In addition to the primary key and its index, we can have index generated for other fields too. Hence searching becomes more efficient, if there is search based on columns other than primary key.

The reasons why 5 B-tree is better:

1.The B-tree Provides support for range of queries in an efficient manner and You can iterate over an ordered list of elements.

2. B-Tree algorithms are good for accessing pages (or blocks) of stored information which are then copied into main memory for processing. In the worst case, they are designed to do dynamic set operations in O(lg n) time because of their high "branching factor" (think hundreds or thousands of keys off of any node). It is this branching factor that makes B-Trees so efficient for block storage/retrieval, since a large branching factor greatly reduces the height of the tree and thus the number of disk accesses needed to find any key.

3. It is a generalization of a BST in that a node can have more than two children. These are self-balancing and hence the average and worst complexities is logarithmic. We opt for these when the data is too huge to fit in main memory. These structures are used in database indexing and help in faster operations on disk

the additional informations is we should first decide to choose which structure is suiatable for which algoritm in terms of space and time and then use the appropriate search algorithm.

8 0
3 years ago
What is the difference between the animation with shape hints and the animation without the shape hints?
soldier1979 [14.2K]
Animation with shape is 3D animation
Animation without shape is 2D animation
4 0
3 years ago
A Supermarket manager hired one packager who can pack 15 boxes every two minutes. Ater some time the manager noticed that packag
Semenov [28]

Answer:

40mn

Explanation:

500/t=15/2+15/3

500/t=75/6

75t=500×6

t=3000/75

t=40

6 0
2 years ago
Read 2 more answers
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