user18979: Lets consider minimum bitcoin transaction amount is $10 and is it possible to send an amount which is less than $10? 

user12983: Yes, it is possible to send even 1 satoshi
But you will be forced to pay 10000 satoshis as transaction fee. 
For example https://blockchain.info/tx/35189b74ac7e0cd8fb723b450f8d63f9b52b628dc5dd3599eadde8d1bbd2a332 sends 0.00000001 btc from 1Fri3h6MtMkjZjYHub4r1N6r5nERWgZXHQ to 13MePxVWGvK2qxd3vhef2Wf79zYQiGNwQL with the fee 0.0001 btc
In general. Lets assume that I can not send you $0.01 (one cent). I will send you $100.01 and you will return me $100.00 back. So, "minimum" rule is useless

18979: <p>Lets consider minimum bitcoin transaction amount is $10 and is it possible to send an amount which is less than $10? </p>
 12983: <p>Yes, it is possible to send even 1 satoshi</p>

<p>But you will be forced to pay 10000 satoshis as transaction fee. </p>

<p>For example <a href="https://blockchain.info/tx/35189b74ac7e0cd8fb723b450f8d63f9b52b628dc5dd3599eadde8d1bbd2a332" rel="nofollow">https://blockchain.info/tx/35189b74ac7e0cd8fb723b450f8d63f9b52b628dc5dd3599eadde8d1bbd2a332</a> sends 0.00000001 btc from 1Fri3h6MtMkjZjYHub4r1N6r5nERWgZXHQ to 13MePxVWGvK2qxd3vhef2Wf79zYQiGNwQL with the fee 0.0001 btc</p>

<p>In general. Lets assume that I can not send you $0.01 (one cent). I will send you $100.01 and you will return me $100.00 back. So, "minimum" rule is useless</p>
