8 An electrostatic force of 20.0 newtons is exerted on a charge of 8.00 X 10...

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8 An electrostatic force of 20.0 newtons is exerted on a charge of 8.00 X 10 2 coulomb at point P in an electric field. The magnitude of the electric field strength at P is (1) 4.00 × 10-3 C/N (2) 1.60 N C (3) 20.0 N/C A a (4) 2.50 X 10² N/C 7 The diagram below shows two identical metal spheres, A and B, separated by distance d. Each sphere has mass m and possesses charge +q. d- +q m Which diagram best represents the electrostatic force F, and the gravitational force F, acting on sphere B due to sphere A? Fg Fg 20-40 Fg Fg B Fe Fe Fe Fe (1) (2) ( 3) oob (4) 20. A charged particle is placed in an electric field E. If the charge on the particle is doubled, the magnitude of the force exerted on the particle by the field E is (1) unchanged (2) doubled (3) halved (4) quadrupled 8 An electrostatic force of 20.0 newtons is exerted on a charge of 8.00 X 10 2 coulomb at point P in an electric field. The magnitude of the electric field strength at P is (1) 4.00 × 10-3 C/N (2) 1.60 N C (3) 20.0 N/C A a (4) 2.50 X 10² N/C 7 The diagram below shows two identical metal spheres, A and B, separated by distance d. Each sphere has mass m and possesses charge +q. d- +q m Which diagram best represents the electrostatic force F, and the gravitational force F, acting on sphere B due to sphere A? Fg Fg 20-40 Fg Fg B Fe Fe Fe Fe (1) (2) ( 3) oob (4) 20. A charged particle is placed in an electric field E. If the charge on the particle is doubled, the magnitude of the force exerted on the particle by the field E is (1) unchanged (2) doubled (3) halved (4) quadrupled