Consider the setup shown in the figure. -Q ------------ Z >> S -q +q + F----1 Determine the force exerted by -Q on the dipole. Choose the correct expression for the force. + sign is along the positive x-direction. ● 1. + k 2. + k 3. 4. - k + k 9³Q 6. - k 2q8Q 23 7. - k 2 qs Q 22 05. + k 98 Q 23 8. - k 2 qs Q 22 2qs Q 23 qs Q 23 qsQ 22

The figure shows an electric dipole. What is the magnitude of the dipole's electric field at point P? Assume that q = 4.48 x 10-6 C, d = 9.24 x 106 m, and r = 7.89 cm. +q + d/2 d/2 -4 Number i Units

Modified Exercise from the Book University Physics With Modern Physics 12th Chapter 21 Problem 99 Two 1.90-m non-conducting wires meet at a right angle. Onesegment carries +4.50 μC of charge distribution uniformly along itslength, and the other carries -9.50 μC distributed uniformly along it,as shown in Fig. (a) Find the magnitude and direction of theelectric field these wires produce at point P, which is 90.0 cm fromeach wire. (b) If an electron is released at P, what are the magnitudeand direction of the net force that these wires exert on it?

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Two neutral polar molecules are attracted to each other. Suppose that each of them has a dipole moment p and that these dipoles are aligned along the x-axis and separated by a distance "x". Find the force exerted by the right dipole on the left as a function of "p" and "x". a) -4kp²/x³ i b) 4kp²/x³ i c) -6kp²/x¹i d) 6kp²/x+i e) -2kp²/x³i

When a negative charge moves in the opposite direction of the field from A to B, the charge-field system B. A° .gains potential energy loses potential energy

An electric dipole with a dipole moment is inserted in a uniform electric field 35- as in Figure. Due to the torque on the dipole applied by the electric field, the dipole rotates around an axis O perpendicular the plane of the field. Which of the followings is/are true about the dipole? I) Its moment of inertia around the rotation axis is constant. II) Its angular acceleration is constant during the rotation as the magnitudes of and are constant. III) The magnitude of the torque is constant during the rotation as the magnitudes of and are constant.

A molecule of DNA (deoxyribonucleic acid) is 2.19 um long. The ends of the molecule become singly ionized: negative on one end, positive on the other. The helical molecule acts like a spring and compresses 1.14% upon becoming charged. Determine the effective spring constant of the molecule. N/m

Je zstand thing shar Spring Consider the electric dipole shown in the figure. If the charges each have a magnitude of 25 nC, are separated by 6.17 mm, and the external electric field has magnitude E = 50 N/C, calculate the torque n (in N.nm) on the dipole when 0 = 17°. Let of the paper" be the direction of positive torque. "out N.nm

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