Irodov – Problems in General Physics

3.204. The electrodes of a capacitor of capacitance C = 2.00 tiF carry opposite charges q, = 1.00 mC. Then the electrodes are in ...

(a) the volume density of the space charge as a function of x; (b) the current density. 3.212. The air between two parallel plat ...

3.218. The gas between the capacitor plates separated by a dist- ance d is uniformly ionized by ultraviolet radiation so that ni ...

(b) at the point lying on the axis of the loop at a distance x = = 100 mm from its centre. 3.220. A current I flows along a thin ...

3.227. A very long wire carrying a current I = 5.0 A is bent at right angles. Find the magnetic induction at a point lying on a ...

Fig. 3.65. 3.234. Inside a long straight uniform wire of round cross-section there is a long round cylindrical cavity whose axis ...

3.243. Find the magnetic moment of a thin round loop with cur- rent if the radius of the loop is equal to R = 100 mm and the mag ...

Fig. 3.69. (a) (b) Fig. 3.68. 3.251. Find the magnitude and direction of a force vector acting on a unit length of a thin wire, ...

mass Am = 60 mg on the balance pan. Find the magnetic induction at the spot where the coil is located. 3.255. A square frame car ...

equal to B 1 on one side of the plane and to 13 2 , on the other. Find the magnetic force acting per unit area of the plane in t ...

Fig. 3.74. of the loop is equal to pm. Find the magnitude and direction of the force vector applied to the loop if the vector pm ...

(b) the volume molecular current I ". t, How are these currents directed toward each other? 3.276. Half of an infinitely long st ...

Fig. 3.77. 3.283. Fig. 3.76 illustrates a basic magnetization curve of iron (commercial purity grade). Using this plot, draw the ...

(b) the magnetic susceptibility of the paramagnetic if the maxim- um attraction force equals F niox = 160 [tN. 3.287. A small ba ...

3.288. A wire bent as a parabola y = ax (^2) is located in a uniform magnetic field of induction B, the vector B being perpendic ...

Fig. 3.80. Fig. 3.81. shown in Fig. 3.81. The connector of length 1 and resistance R slides to the right with a constant velocit ...

0 a I J R a at 0' Fig. 3.86. 3.297. The system differs from the one examined in the foregoing problem (Fig. 3.84) by a capacitor ...

slides without friction along the wires with a constant velocity v. Assuming the resistances of the wires, the connector, the sl ...

3.305. A plane loop shown in Fig. 3.91 is shaped as two squares with sides a = 20 cm and b = 10 cm and is introduced into a uni- ...

of the ring and increased with time according to a certain law B (t). Find the angular velocity co of the ring as a function of ...