There is a naturally occurring vertical electric field near the Earth's surface that points toward the...

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There is a naturally occurring vertical electric field near the Earths surface that points toward the ground. In fair weather conditions, in an open ficld, the strength of this electric field is 110.0 N/C. A spherical pollen grain with a radius of 13.0 pum is released from its parent plant by a ight breeze, giving it a net charge of -0.850 fC (where 1 fC -1x 10-15 C). What is the ratio of the magnitudes of the electric force to the gravitational foree, Felecrl Fgra, acting on the pollen? Pollen is primarily water, so assume that its volume mass density is 1000 kg/m2, identical to the volume mass density of water. electric grav

The electrical breakdown of an insulator occurs when an electric field becomes large enough to ionize the insulator, allowing clectrical current to flow: lightning is an example of the electrical breakdown of air. The electrical breakdown of air occurs when the electric field reaches about 3 × 106 N/C Estimate the magnitude of the total static charge on your body qbody when you generate a static spark with your fingertip when getting out of your car. Assume a spark gup of 1 mm. hody

Select the options that best complete the statement. follow electric field lines, because Positively charged particle trajectories never electric field lines are defined by the path positive test charges travel. velectric field lines are defined by the path positive test charges travel. positive charges repel each other and, therefore, are repelled by electric field lines. the electric force on a positively charged particle is in the same direction as the electric field. the particle velocities may or may not be in the same direction as the electric field lines.

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