6) A dipole of magnitude p = 3 x 10 25 Cm is placed in an electric field of strength E = 46 N/C. The dipole makes an angle of 64° with the electric field. How much energy is needed to turn the dipole 180° clockwise?
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- A dipole is held motionless in an electric field as shown in the figure. When the dipole is released, which of the following describes the subsequent motion? P The dipole rotates counterclockwise The dipole rotates clockwise and move more towards right side The dipole rotates counterclockwise and move more towards left side The dipole rotates counterclockwise and move more towards right side O The dipole rotates clockwise The dipole rotates clockwise and move more towards left side-A ZE The potential difference between the accelerating plates of a TV set is about 30 kV. If the distance between the plates is 1.3 cm, find the magnitude of the uniform electric field in the region between the plates. N/CExample 2: Two 2.0 cm × 2.0 cm square plates are charged with ±0.030 nC. The plates are balanced on an insulating table and are 6.0 mm apart. A 0.10 mm diameter water droplet that is missing 5.0x10° electrons is released from rest 2.0 cm above the table and halfway between the plates. Where does the droplet hit the table? 0.10 mm water droplet 2.0 cm X 2.0 cm 2.0 cm X 2.0 cm +0.030 nC -0.030 nC
- c) Considering electron and proton as two charged particles separated by d = 5 × 10-11 m calculate the following: i) the electrostatic potential at a distance d from the proton. ii) the potential energy of the electron in the field of the proton iii) the Coulomb force between proton and electron iv) the gravitational force between the proton and electron and find its ratio to the Coulomb force. Take the mass of the proton 1.7 x 10-27 kg, the mass of the electron 9.1 x 10-31 kg, the electron charge -1.6 x 10-19 C, the value of the universal gravitational constant 1 6.7 × 10-11 N kg-2m-2 and Απο 9 x 10° m/F.Two electric dipoles of dipole moment p, and p, are placed at origin such that one is along x-axis and the P2 3 òther along y-axis respectively. If potential at point (r,0) is zero then P2 is (а) 1 (b) cot0 (c) tan 0 (d) sin0.cos05. You found that the electric potential due to a dipole oriented along the z axis is given by pco$e) 4те a. What is the direction of the field along the x axis? b. If we are on the x axis, a derivative with respect to z is the same as 1 d dz ф Use this equivalence to calculate Ez along the x axis. This should agree with your result from Unit VII p. 20 in your activity guide