Question

A small particle with a charge q = +61 µC, mass m = 4.3 g, and volume V = 2.6 \times 10^{-6} m^3 is in static equilibrium between two horizontally oriented plates. The plates are separated by a distance d = 25 cm, and the space between the plates is filled with oil. The density of the oil is $\rho$ = 730 kg/m$^3$. What is the magnitude of the electric field between the plates? (Hint: Draw a force diagram that includes the electric force, the gravitational force, and the buoyant force. Recall that the buoyant force is given by $F_B = \rho g V$.) Give your answer to two significant figures and don't forget units.

          A small particle with a charge q = +61 µC, mass m = 4.3 g, and volume V = 2.6 \times 10^{-6} m^3 is in static equilibrium between two horizontally oriented plates. The plates are separated by a distance d = 25 cm, and the space between the plates is filled with oil. The density of the oil is $\rho$ = 730 kg/m$^3$. What is the magnitude of the electric field between the plates? (Hint: Draw a force diagram that includes the electric force, the gravitational force, and the buoyant force. Recall that the buoyant force is given by $F_B = \rho g V$.) Give your answer to two significant figures and don't forget units.

A small particle with a charge q = +61 µC, mass m = 4.3 g, and volume V = 2.6 ×10^-6 m^3 is in static equilibrium between two horizontally oriented plates. The plates are separated by a distance d = 25 cm, and the space between the plates is filled with oil. The density of the oil is ρ = 730 kg/m^3. What is the magnitude of the electric field between the plates? (Hint: Draw a force diagram that includes the electric force, the gravitational force, and the buoyant force. Recall that the buoyant force is given by FB = ρ g V.) Give your answer to two significant figures and don't forget units.

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