In the rectangle in Figure, the sides are 5.0 cm and 15 cm long, q1 = -5.0 uC, and q2 = +2.0 uC. With V = 0 at infinity, %3D A В 42 a. What is the electric potential at corner A? b. What is the electric potential at angle B?
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A: Solution:-Given thatq1=3 nC=3×10-9 Cq2=-2 nC=-2×10-9 Cq3=3 nC=3×10-9 Cx=3 cm=0.03 my=5 cm=0.05 m
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- A rod of length Llies along the xaxis with its left end at the origin. It has a uniform charge density λ. Calculate:a. The electric potential at point A = ( x = -d, y = 0).b. The electric potential at point B = (0, b)as shown.Thank you!!18. Figure below shows a ring of outer radius R = 13.0 cm and inner radius l'inner = 0.200R. It has uniform surface charge density 0 = 6.20 pC/m². With V = 0 at infinity, find the electric potential at point P on the central axis of the ring, at distance z = 2.00R from the center of the ring. 6 dQ K √ ₁7 - Pl What is your dQ? What is your infinitesimal area element? (a) Start with the formula for the potential: V = k What are your vectors r and r'? What is the distance to point P? What is dV? Potential due to a small ring of charge on the disk? (b) Write out the integral that you need to compute to get V. What are the bounds? (c) Once you get an expression for V, solve numerically. (d) Check to see if the units of your expression makes sense for V.
- Three polarizing sheets are placed in a stack with the polarizing directions of the first and third perpendicular to each other. What angle should the polarizing direction of the middle sheet make with the polarizing direction of the first sheet to obtain maximum transmitted intensity when unpolarized light is incident on the stack? 0° 15° 30° 45° 60° 75° 90°P1. A plane parallel capacitor, whose plates are eadh of area A and separation d, is ch arged with a bat tery of E MF V. How much work is done if a large met allic slab with thickness d/3 is in serted in side the capacitor? The slab is parallel with the plates. The capacitor is connected to the battery while we move the metallic slab, so the potential of the capacitor is fixed. metal d/3 d AQ2. A hollow spherical conductor, carrying a net charge Q, has inner radius r, and outer radius r,=4r1. At the center of the sphere is a point charge Q/2. Determine the potential as a function of r, the distance from the center, for (a) (b) 5Q1. What is the electric potential of a dipole on the y-axis at large distances? 1 qd 1 qd (c) V = 2nɛ, r? 1 qd 4πε r (a) V = 0 (b) V = (d) V = 2πε, r y Q2. Find the monopole term in the multi-pole expansion of the electric potential on the z- axis for a flat circular charged disk of radius R and charge density o (r,q) = krʻ cosʻ q, where k is a constant and r, q are polar coordinates with the origin at the disk's centre.can u help with part c asap plz3. A thin circular ring has a radius R and charge3 Q distributed uniformly over its length. What is the electric potential at the center of the ring? Hint: this is very easy since every point on the ring is the same distance from the center. Therefore you don't need to integrate. а. 3Q, R b. What is the electric potential at a distance z along the axis of the thin ring? Comment: each point on the ring is still the same distance from point P. 3Q, R