It is known that the Earth has a net negative charge on the surface owing to...
It is known that the Earth has a net negative charge on the surface owing to which the voltage decreases with the altitude by about 100V/m. Assuming the charge is distributed uniformly across a perfectly spherical surface, work out the amount of charge per m2 and the number of electrons per m2 of surface. Hint: Set up the voltage difference between a point located h=1m above the surface and considering that h << R , use a Taylor series expansion on the given voltage function.
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It is known that the Earth has a net negative charge on the
surface owing to...
The earth has a net negative charge of about -4.3 x 105 C. Since this charge...
The earth has a net negative charge of about -4.3 x 105 C. Since this charge is distributed more or less uniformly over the spherical earth, the force due to this charge is the same as if it were all placed at the Earth's center. A 6.0 kg satellite is orbiting with an orbital radius of 55000 km. If the satellite were also charged, then there would be an electric force in addition to the gravitational force a. What charge...
A charge of 10.0 pC is distributed uniformly on a spherical surface (radius = 2.0 cm),...
A charge of 10.0 pC is distributed uniformly on a spherical surface (radius = 2.0 cm), and a second point charge of -10.0 PC is located at the center of the sphere. Determine the magnitude of the electric field a) 5.0 cm from the center of the sphere. b) 1.0 cm from the center of the sphere. c) What is the potential difference between two points mentioned in parts (a) and (b)?
4. The Earth is not neutral. It has a charge of roughly −6.76 × 105 C,...
4. The Earth is not neutral. It has a charge of roughly −6.76 × 105 C, which is roughly uniformly distributed over the Earth. (a) How large is the force that the Earth exerts on an electron near its surface? Is this force attractive or repulsive? Compare this force with the gravitational force that the Earth exerts on the electron. (b) Suppose we wanted to levitate a paper clip using the electric force that the Earth exerts on it. The...
4. The Earth is not neutral. It has a charge of roughly -6.76 x 105 C,...
4. The Earth is not neutral. It has a charge of roughly -6.76 x 105 C, which is roughly uniformly distributed over the Earth. (a) How large is the force that the Eartlh exerts on an electron near its surface? Is this force attractive or repulsive? Compare this force with the gravitational force that the Earth exerts on the electron. (b) Suppose we wanted to levitate a paper clip using the electric force that the Earth exerts on it. The...
Assume two negative charges are placed close to each other, with one charge fixed and one...
Assume two negative charges are placed close to each other, with one charge fixed and one charge free to move. The free charge will: O a accelerate away from the fixed charge. b. move closer to the fixed charge. Og C. orbit the fixed charge in a circular motion. d. remain stationary. Which of the following statements about insulating materials is correct? oa. Soaking paper in salt water decreases its insulation capability O b. The amount of current flowing in...
#1 and #3 I) )A solid insulating sphere of radius a carries a net positive charge density 3p uniformly distributed throughout its volume. A conducting spherical shell of inner radius 2a and outer...
#1 and #3
I) )A solid insulating sphere of radius a carries a net positive charge density 3p uniformly distributed throughout its volume. A conducting spherical shell of inner radius 2a and outer radius 3a is concentric with the solid sphere and carries a net charge density-22 Using Gauss's law, find the electric field everywhere. Sketch the electric field 2) "A) The current density in a cylindrical wire of radius R meters is uniform across a cross section of the...
A solid conducting sphere has a radius of 10.7 cm and a net electrical charge of...
A solid conducting sphere has a radius of 10.7 cm and a net electrical charge of 4.06 nC. What is the magnitude of the electric field at a distance 18.6 cm from the sphere's center? Select one a. 10.5 N/C b. 1.9664 N/C c. 1050 N/C d. 196 N/G e. 3190 N/C 2. A hollow conducting sphere has an inner radius of 5.38 cm and an outer radius of 8.637 cm. The sphere has a net electric charge of -6.87...
4.35 please (a) Find the net flux crossing surface r = 2 m and (b) Determine...
4.35 please
(a) Find the net flux crossing surface r = 2 m and (b) Determine D atr Im and r 5 m 6 m. 4.34 A spherical region of radius a has total charge Q If the charge is uniformly distributed apply Gauss's law to find D both inside and outside the sphere Sections 4.7 and 4.8 Electric Potential and Relationship with iE 4.353) Two point charges Q 2 nC and Q-4nC are located at (1. 0. 3) and...
I need help solving for the charge “q”. My professor says it’s just algebra but it...
I
need help solving for the charge “q”. My professor says it’s just
algebra but it seems to be challenging. I added photos of the lab
and a free body diagram for reference.
Estimating the Charge on a Simple Electroscope Questions one poses to nature in physics are answered through measurement and modeling. The answer has uncertainties not only due to measurements, but how good the model is. This lab is constructed not as a cookbook exercise, but to mimic...
Consider a cylindrical capacitor like that shown in Fig. 24.6. Let d = rb − ra...
Consider a cylindrical capacitor like that shown in Fig. 24.6. Let d = rb − ra be the spacing between the inner and outer conductors. (a) Let the radii of the two conductors be only slightly different, so that d << ra. Show that the result derived in Example 24.4 (Section 24.1) for the capacitance of a cylindrical capacitor then reduces to Eq. (24.2), the equation for the capacitance of a parallel-plate capacitor, with A being the surface area of...
The earth has a net negative charge of about -4.3 x 105 C. Since this charge is distributed more or less uniformly over the spherical earth, the force due to this charge is the same as if it were all placed at the Earth's center. A 6.0 kg satellite is orbiting with an orbital radius of 55000 km. If the satellite were also charged, then there would be an electric force in addition to the gravitational force a. What charge...
A charge of 10.0 pC is distributed uniformly on a spherical surface (radius = 2.0 cm), and a second point charge of -10.0 PC is located at the center of the sphere. Determine the magnitude of the electric field a) 5.0 cm from the center of the sphere. b) 1.0 cm from the center of the sphere. c) What is the potential difference between two points mentioned in parts (a) and (b)?
4. The Earth is not neutral. It has a charge of roughly -6.76 x 105 C, which is roughly uniformly distributed over the Earth. (a) How large is the force that the Eartlh exerts on an electron near its surface? Is this force attractive or repulsive? Compare this force with the gravitational force that the Earth exerts on the electron. (b) Suppose we wanted to levitate a paper clip using the electric force that the Earth exerts on it. The...
Assume two negative charges are placed close to each other, with one charge fixed and one charge free to move. The free charge will: O a accelerate away from the fixed charge. b. move closer to the fixed charge. Og C. orbit the fixed charge in a circular motion. d. remain stationary. Which of the following statements about insulating materials is correct? oa. Soaking paper in salt water decreases its insulation capability O b. The amount of current flowing in...
#1 and #3
I) )A solid insulating sphere of radius a carries a net positive charge density 3p uniformly distributed throughout its volume. A conducting spherical shell of inner radius 2a and outer radius 3a is concentric with the solid sphere and carries a net charge density-22 Using Gauss's law, find the electric field everywhere. Sketch the electric field 2) "A) The current density in a cylindrical wire of radius R meters is uniform across a cross section of the...
A solid conducting sphere has a radius of 10.7 cm and a net electrical charge of 4.06 nC. What is the magnitude of the electric field at a distance 18.6 cm from the sphere's center? Select one a. 10.5 N/C b. 1.9664 N/C c. 1050 N/C d. 196 N/G e. 3190 N/C 2. A hollow conducting sphere has an inner radius of 5.38 cm and an outer radius of 8.637 cm. The sphere has a net electric charge of -6.87...
4.35 please
(a) Find the net flux crossing surface r = 2 m and (b) Determine D atr Im and r 5 m 6 m. 4.34 A spherical region of radius a has total charge Q If the charge is uniformly distributed apply Gauss's law to find D both inside and outside the sphere Sections 4.7 and 4.8 Electric Potential and Relationship with iE 4.353) Two point charges Q 2 nC and Q-4nC are located at (1. 0. 3) and...
I
need help solving for the charge “q”. My professor says it’s just
algebra but it seems to be challenging. I added photos of the lab
and a free body diagram for reference.
Estimating the Charge on a Simple Electroscope Questions one poses to nature in physics are answered through measurement and modeling. The answer has uncertainties not only due to measurements, but how good the model is. This lab is constructed not as a cookbook exercise, but to mimic...
Consider a cylindrical capacitor like that shown in Fig. 24.6. Let d = rb − ra be the spacing between the inner and outer conductors. (a) Let the radii of the two conductors be only slightly different, so that d << ra. Show that the result derived in Example 24.4 (Section 24.1) for the capacitance of a cylindrical capacitor then reduces to Eq. (24.2), the equation for the capacitance of a parallel-plate capacitor, with A being the surface area of...
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