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5. Three equal charges, carh having a magnitude of 2 x 10-° C are placed at the three corners of the right angled triangle of sides 3 cm, 4 cm, 5 cm. Find the force on the charge at the right angle corner a) 49.5 N b) 45.9 N c) 4.59 N d) 4.95 N

5. Three equal charges, carh having a magnitude of 2 x 10-° C are placed at the three corners of the right angled triangle of sides 3 cm, 4 cm, 5 cm. Find the force on the charge at the right angle corner a) 49.5 N b) 45.9 N c) 4.59 N d) 4.95 N

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Or negative 5. Three equal charges, carh having a magnitude of 2 x 10-° Care placed at the three corners of the right angled triangle of sides 3 cm, 4 cm, 5 cm. Find the force on the charge at the right angle corner a) 49.5 N b) 45.9 N c) 4.59 N d) 4.95 N 6. Two particles A & B having charges 8 × 10° and – 2 × 10-° C respectively are held fixed with a separation of 20 cm. Where should third charged particle placed so that it doesnot experience a net electric force? [ d) 30 cm from A a) 20 cm from B b) 20 cm from A c) 40 cm from B 7. Four equal charges 2 x 10-6 C each are fixed at the four corners of a square of a side 5 cm. Then the columb forces by one of the charges due to the rest of three are b) 27.5 N a) 29.5 N c) 22.5 N d) 25.5 N 8. A charged particle P has a mass of 10-12 kg and carry a charge of 4.9 × 10- C. Calculate the intensity of the electric field to be applied on it, in vertically upward direction, so as to keep it at rest I1 a) 2 x 103 N/C c) 4 x 10 N/C d) 2 x 102 N/C b) 2 x 10 N/C
Transcribed Image Text:Or negative 5. Three equal charges, carh having a magnitude of 2 x 10-° Care placed at the three corners of the right angled triangle of sides 3 cm, 4 cm, 5 cm. Find the force on the charge at the right angle corner a) 49.5 N b) 45.9 N c) 4.59 N d) 4.95 N 6. Two particles A & B having charges 8 × 10° and – 2 × 10-° C respectively are held fixed with a separation of 20 cm. Where should third charged particle placed so that it doesnot experience a net electric force? [ d) 30 cm from A a) 20 cm from B b) 20 cm from A c) 40 cm from B 7. Four equal charges 2 x 10-6 C each are fixed at the four corners of a square of a side 5 cm. Then the columb forces by one of the charges due to the rest of three are b) 27.5 N a) 29.5 N c) 22.5 N d) 25.5 N 8. A charged particle P has a mass of 10-12 kg and carry a charge of 4.9 × 10- C. Calculate the intensity of the electric field to be applied on it, in vertically upward direction, so as to keep it at rest I1 a) 2 x 103 N/C c) 4 x 10 N/C d) 2 x 102 N/C b) 2 x 10 N/C
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