Question Image Which of the following statements about
an alternating current are correct?
(1) It flows backwards and forwards in a
circuit.
(2) In Hong Kong, mains sockets supply
alternating currents.
(3) In the mains circuit in Hong Kong,
the frequency of the current is 50 Hz.
nd (3) on
) and (2) on

B, it is easy to scan for key information. there are times when a lot of information is included in a business letter. the block letter format you find key bits of information quickly, without having to read through the whole paper.

Ithink the answer is d hope it

Once the twisted pair cable is connected and a network is established the led lights at the back of the computer should be steady. on most ethernet adapters nowadays, a steady green light means that the connection is actively connected to a valid partner at the opposite end. if the status of the led starts flashing, this means that there’s some activity and data is being transferred.