13 A particle of mass m and charge q is fastened to one end

Last updated: 6/27/2023

13 A particle of mass m and charge q is fastened to one end of length 7 The other end of the string is fixed to the point O The whole system lies on a frictionless horizontal plane Initially the mass is at rest at A A uniform electric field in the direction shown is then switched on Then a the speed of the particle when it reaches Bis 29 El m GET b the speed of the particle when it reaches Bis V m the tension in the string when the particle reaches at Bis qE the tension in the string when the particle reaches at Bis zero 60 A