The answer is (C) broadband cellular networks
Over the past decade, a majority of the mobile service providers have built 3G networks that use packet-switching technologies. Over time, 3G evolved into HSPDA which is five times faster than 3G. Predictably, 4G networks are now commonplace and are built from LTE and Mobile WiMAX.
Answer:
Below is the required statement:
Explanation:
select c.categoryname
from categories c
where not exists (select 1 from products p where p.categoryid = c.categoryid);
Answer:
Q=It
and
p=IV
Given, v=9V P= 7W
I=P/V
I =7/9
Also, time(t) from 9am to 12pm is 3hrs
Converting into sec =3×3600
t=10800
Q= 7/9 ×10800
Q =8400C