তড়িৎ চুম্বকত্ব পর্ব-৪ || Magnetic force on a moving charge || Cyclotron frequency

[@bikrammahanta3675]

Thank u sir ...🙏

[@shreyesmondal4033]

Thanks Sir

[@alishafarjana5004]

Thank you sir

[@sanjumedico8449]

Right hand scrue rule er khetre to sign of charge er kono role nei?

[@dhananjoymahato8644]

Thank you sir