Thank you sir circuit is good. Sir if i connect 4v supply, the beep sound changes, with 4v supply i want sound what you used 9v supply and with 100 mf what are the components to be changed with 4v supply. Thank you.
Is power plant ki bijali udghatan aur paida karne se pahle Bihar ki Kisan se ijaajat Nitish Kumar ne liya tha kyunki Kisan ki fasal chhati ho raha hai aur urja sharir ka chhati ho raha
