Irodov – Problems in General Physics

3.73. A non-polar molecule is located at the axis of a thin uniformly charged ring of radius R. At what distance x from the ring ...

Fig. 3.11. (b) the circulation of the vector D around the closed path of length I (see Fig. 3.11) whose plane is perpendicular t ...

(a) does not change the voltage across the plates; (b) leaves the charges at the plates constant. 3.85. Solve the foregoing prob ...

3.93. A half-space filled with uniform isotropic dielectric with permittivity a has the conducting boundary plane. Inside the di ...

obtained in the foregoing problem, find the electric field strength E in the cylinder and the polarization P of the dielectric w ...

Fig. 3.16. (b) the space density of the bound charges as a function of a if the charge of the capacitor is q and the field E in ...

3.113. Four identical metal plates are located in air at equal distances d from one another. The area of each plate is equal to ...

3.119. Find the charge of each capacitor in the circuit shown in Fig. 3.22. [ Cf 62 11 C, 0 II C2 II 6:5^11 4 C 2 6 Fig. 3.22.^ ...

Using the symmetry of the formula obtained, write the expressions for the potentials. at points^2 and 3. 3.126. Find the capacit ...

Fig. 3.32. 3.132. What amount of heat will be generated in the circuit shown in Fig. 3.30 after the switch Sw is shifted from po ...

3.141. Each plate of a parallel-plate air capacitor has an area S. What amount of work has to be performed to slowly increase th ...

5 7 4' Fig. 3.35. 3.4. Electric Current Ohm's law for an inhomogeneous segment of a circuit: V12 (P1— P2+^412 (3.4a) where Via ...

3.151. At what value of the resistance Rx in the circuit shown in Fig. 3.36 will the total resistance between points A and B be ...

3.157. Two metal balls of the same radius a are located in a homo- geneous poorly conducting medium with resistivity p. Find the ...

tan a 2 /tan al = a,/cri, where al and a2 are the conductivities of the media, a 2 and al are the angles between the current lin ...

in parallel with the voltmeter, the readings of the latter decrease = 2.0 times, whereas the readings of the ammeter increase th ...

R 0 , and voltage Vo is applied to its terminals. Find the voltage V fed to the device as a function of distance x. Analyse sepa ...

A 0—• Rj Ry Fig. 3.49. c Ri Fig. 3.50. 3.185. Find the current flowing through the resistance R 1 of the circuit shown in Fig. 3 ...

Fig. 3.53. At what value of R will the thermal power generated in this circuit be the highest? 3.191. Make sure that the current ...

Fig. 3.55. r = 0.3 52, is loaded with an external resistance R = 10 Q. Find the number n of parallel groups consisting of an equ ...