Question

In serial communication, if the time interval to transmit one bit is 10 \(\mu\) sec. What is the time to transmit an 8-bit word?

• A. 8 \(\mu\) sec
• B. 80 \(\mu\) sec
• C. 0.8 \(\mu\) sec
• D. 0.008 \(\mu\) sec

Hint:

Serial Transmission Time. Total Time = (Number of bits) \(\times\) (Time per bit). Time per bit is the reciprocal of the bit rate (Baud rate if 1 bit per symbol).

Answer 1

The Correct Option is B

Serial communication transmits data one bit after another sequentially over a single channel
The time required to transmit one bit is given as the bit interval = 10 \(\mu\)s
An 8-bit word consists of 8 bits
Since the bits are transmitted sequentially, the total time required to transmit the 8-bit word is the number of bits multiplied by the time per bit
Total time = (Number of bits) \(\times\) (Time per bit) Total time = 8 bits \(\times\) 10 \(\mu\)s/bit = 80 \(\mu\)s