Two parallel, flat, conducting plates with equal but opposite charges are separated by a uniform layer of insulating material with a dielectric constant of 7.1 and a thickness of 1.7mmmm. The electric field in the dielectric material is 2.22MV/mMV/m. What is the magnitude, in microcoulombs per squared meter, of the surface charge density on the conducting plates? What is the magnitude, in microcoulombs per squared meter, of the surface charge density on the conducting plates?

What is the electric field midway between charges of 1 micro C and 3 mC separated by 4 cm?

two parallel-plate capacitors (with air between the plates) are connected to a battery. Capacitor 1 has a plate area of 2.4 cm2 and an electric field (between its plates) of magnitude 1800 V/m. Capacitor 2 has a plate area of 0.56 cm2 and an electric field of magnitude 1700 V/m. What is the total charge on the two capacitors?

What is the magnitude of the electric field a distance of 75 cm from an infinite wire of charge with a charge density of 3.5 micro-Coulombs per square meter?

Question is attached.

A proton is projected horizontally midway between two parallel plates that are separated by 0.47 cm. The uniform electric field has magnitude 6.0 × 105 N/C between the plates. If the plates are 5.6 cm long, find the minimum speed of the proton if it just misses the lower plate as it emerges from the field. The gravitational force on the proton can be neglected. O 6.2 x 106 m/s 12 x 106 m/s 11 x 106 m/s 7.4 x 106 m/s 8.7 x 106 m/s Tw E

A uniform electric field 3.41E3 N/C is applied in a cubic box with each side being 2.23 m long.  What is the energy stored by the electric field in the box (in J)?

Two thin conducting plates, each 28 cm on a side, are situated parallel to one another and 5 mm apart. If 8·1011 electrons are moved from one plate to the other, what is the electric field between the plates? (b)    Calculate the surface charge density of the plates. (c)    What is the electric field between the plates?

You have built a device that measures the temperature outside and displays it on a dial as a measure of how far away from room temperature outside is. The way the dial works is that a needle with a charged ball on the end is placed between two charged parallel plates. The strength of the uniform electric field between the plates is proportional to the outside temperature. Given that the charged ball on the needle has a charge of −2.4 µC and the needle can be represented as a string with tension 0.350 N, and is at an angle of 22°, consider the following.   What is the mass of the object? gWhat is the magnitude of the electric field? N/C

parallel-plate capacitors are widely used in electronics such as preventing direct current leakage. An electric field is generated between a pair of plates that has a surface charge density of 7.70 x 10^-6 C/m^2 The plates are seperated by 0.49 um. a) what is the magnitude of the electric field between the plates ? b) suppose the thickness of the plates doubled, would my answer increase, decrease, or remain the same?