What is the bit rate of the following signals?

1. A signal in which bit lasts for 0.001 seconds
2. A signal in which bit lasts for 2ms
3. A signal in which 10 bits lasts for 20µs
4. A signal in which 1000 bits lasts for 250 picoseconds

Answer

1. A signal in which bit lasts for 0.001 seconds

Bit rate =1/0.001 seconds       =1000bps       

=1Kbps

2. A signal in which bit lasts for 2ms

Bit rate = 1/0.002=500bps

                            = 0.5 Kbps

3. A signal in which 10 bits lasts for 20µs

Bit rate = 10/0.000020 = 500000bps

                                                             = 500 Kbps

4. A signal in which 1000 bits lasts for 250picoseconds

Bit rate = 1000/ 0.000000000250       = 4,000,000,000,000 bps

= 4,000,000,000 Kbps