A force of 50.0N is acted on by a charge of 0.25 C. Calculate the intensity of the electric field. A 200. В. .005 C. 12.5 D. 50.3

3. A droplet of mass 4.7 × 10-15 kg floats in an electric field of 3.20 × 104 N/C. a. What is the force of gravity on this droplet? (4.6X10-¹4N) b. What is the electric force that balances it? (4.6X10-¹4N) c. What is the total charge? (1.4x10-¹8℃) d. How many excess electrons are there on this droplet? (9 electrons)

N.m²/C is a unit of electric a. field. b. flux. c. force. ○ d. density.

What is the magnitude of the force (in micro Newtons) between two balloons, each with a negative charge of 5.1 x 10–10 C if the balloons are 2.7 cm apart? Select one: O a. 13.8 O b. 3.2 O c. 32.0 O d. None of the above O e. 320

One charge of 2.0 C is 1.5m away from a –3.0 C charge. Determine the forcethey exert on each other.a. 2.4×1010 Nb. 5.4×1010 Nc. 3.6×1010 Nd. 2.66 N

The number of electric field lines passing through a unit cross-sectional area is indicative of a. field direction. b. charge density. c. field strength. d. charge motion.

You shuffle your feet on carpet and build up a negative static charge on your skin. Which atom of a water molecule from the humidity in the air is the first to contact your skin?  A. Either of the hydrogen atoms. B. The oxygen atom. C. All atoms have an equal chance of contacting your skin.

Given the Van de Graaff generator. What happens to the electric field INSIDE the conducting sphere of a Van de Graaff generator as it charges? O A. The field will have a net force of one. O B. Nothing the field is always zero. O C. The field increases in magnitude as the amount of charge increases. O D. The field decreases in magnitude as the amount of charge increases.

2. An electric field of 100N/C is in positive direction. The force on electron in this field is -----(given charge of electron 1.602x10-19C) a. 1.602x10-17N b. 6.24×1020N 1.602xr C. 1.602x10-19N d. 62.4×106N 十= 100 -21 1.602x16 N 5uG and as- 30 uCare placed 1 0 m anart Tho foro o on third

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