A bob of mass m= 100 gm having charge q-50μC connected with a non-conducting string of length /- 1m is whirled in vertical plane with minimum speed such that it can complete a circular path in space where electric field of strength E-2x 10' N/C is switched on as shown in figure. g m/s 10 m/s² (1) The velocity of bob at the point where tension in string become zero is L A) v = (√5i + √3 j) B) v = √101 C) : Im Fu m 5 -√√2/21 (i + √3 j) D) v =√(√3i- j) E
A bob of mass m= 100 gm having charge q-50μC connected with a non-conducting string of length /- 1m is whirled in vertical plane with minimum speed such that it can complete a circular path in space where electric field of strength E-2x 10' N/C is switched on as shown in figure. g m/s 10 m/s² (1) The velocity of bob at the point where tension in string become zero is L A) v = (√5i + √3 j) B) v = √101 C) : Im Fu m 5 -√√2/21 (i + √3 j) D) v =√(√3i- j) E
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Transcribed Image Text:A bob of mass m= 100 gm having charge q-50µC connected with a non-conducting string of length/- 1m is whirled
in vertical plane with minimum speed such that it can complete a circular path in space where electric field of strength
E-2 10' N/C is switched on as shown in figure. g m/s² = 10 m/s²
(1) The velocity of bob at the point where tension in string become zero is
L
1m
E
Wiferen
mg
A) v = (√5i + √3j)
B) =√101
( ) v = -√ √ 2 (² + √3 ) )
D) v = -√2/ (√3₁ - 1)
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