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- Ieft Fight There is a uniformly distributed negative charge on the semicircle shown. What O? O A) left O B) up CyC) rigth D) downThere are three charges, q, = +1nC, q2 = -5nC, and q3 q2 is located on x axis at 2cm, and qą is located on x axis at 4cm. What is the net force on charge q2 due to the two charges qı and q3? +1nc. , q, is located at the origin, 91 92 93 2ст 2ст6 6 - A dielectric is a material that is: A) a semiconducting B) a nonconducting C) a superconducting D) none of them E) a conducting
- Four point charges are placed at corners of a square . At the top left is a charge of - 1 C, at the top right is a charge of - 2 C, at the bottom right is a charge of -3 Cand at the bottom left is a charge of - 4 C. What is the direction of the net electric force due to the four point charges on a positive charge Q located at the center of square ? O due North O due South O Sw O SEConsider the large inductor in Figure 3 with given number of turns N, core permeability μ, core cross section area A, and core diameter are given. Note that the core length l is equal to π times the core diameter. Answer the questions and pick an answer from the given choices. The coil is made up of copper wire that has a cross section area of 1 cm2, and the length of each turn is nearly equal to 1 m. Find the resistance of the coil. (Assume an operating temperature of 20o C). 1) 180.2 mΩ 2) 17.2 mΩ 3) 1.2 Ω 4) 850.5 mΩ4. In the following figure, two charges: (q, 2 x 10-6C) and (q2 = 2.5 x 10- C). find the magnitude and the direction of the resultant force exerted by the two charges on a third one (Q = 5x0-6C). 0.5m 0.3m 0 4m 0.3m 0.5m
- A half hollow cylinder of length 6 a has its cross section as ahown in Figure below. If the cyltender is raade of calua (a- 10s mhoe'm), du sstance hetwo due euds ef the cylinder. Take a =3 cm, and b =5 c. 22735 1 15.157 0 10 170 7.57 0N=15 windings are wound on a square-section iron core with a square outer appearance. If the dimensions are w=2 cm, L1=8 cm and the magnetic permeability of the core is 0.004 H/m, how many micro Henrys is the inductance of the coil? a) 1500 b) none c) 500 d) 0.5 e) 5000The ratio of the total charge on either plate to the potential difference between ? plates is known as capacitance True False
- Q2: Two circuits are arrange as shown in figure Below, (a and b) each one of them has two identical conductors, the vertical distance between each conductor in the same circuit is 1 m, the distance horizontally between circuits is 30 cm, take 1 cm as diameter for each conductors. Determine the inductance per km of the double circuit? a -- 3D 914. The flux produced in the dielectric of a capacitor is 9 x 10-4 coulomb when th impressed emf is 1,500 volts. What is the capacitance of the capacitor? 5. Calculate the capacitance of a parallel-plate capacitor that consists of 80 glas plates, each one 0.045 in. thick, and 81 sheets of 6.5- by 7.5-in. aluminum foPlease answer it in 1hr. Topic: Capacitance and Magnetics write your solutions neat and complete thank you