Answer:
C
Explanation:
When an Ethernet NIC has been configured by the OS to use half-duplex, the transmit pair of the cable uses SIMPLEX transmissions, the receive pair in the SIMPLEX transmissions, and the twisted pair cable uses HALF-DUPLEX transmissions.
Cheers
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