The electric field at the origin due to electric potential V=(x-2)+(y+2)+(2-1)³ is (4ax-4ay+ 3az) O (4ax + 4ay+ 3az) (4ax-4ay-3az) O (-4ax-4ay-3az) O Ο Οι
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- Assume that the current flow through the resistor, IR, is 15 A; the current flow through the inductor, IL is 36 A; and the circuit has an apparent power of 10,803 VA. The frequency of the AC voltage is 60 Hz. ET ER EL IT IR15A IL36A Z R XL VA10,803 P VARSL PF LInductive Circuits Fill in all the missing values. Refer to the following formulas: XL=2fLL=XL2ff=XL2L Inductance (H) Frequency (Hz) Inductive Reactance ( ) 1.2 60 0.085 213.628 1000 4712.389 0.65 600 3.6 678.584 25 411.459 0.5 60 0.85 6408.849 20 201.062 0.45 400 4.8 2412.743 1000 40.841Assume that the voltage drop across the resistor, ER, is 78 V, that the voltage drop across the inductor, EL, is 104 V, and the circuit has a total impedance, Z, of 20 . The frequency of the AC voltage is 60 Hz. ETITZ20VAPFER78VIRRPEL104VILXLVARsLL
- Capacitive Circuits Fill in all the missing values. Refer to the formulas that follow. XC=12fCC=12fXCf=12CXc Capacitance XC Frequency 38 F 60 Hz 78.8 400 Hz 250 pF 4.5 k 234 F 10 kHZ 240 50 Hz 10 F 36.8 560 nF 2 MHz 15 k 60 Hz 75 nF 560 470 pF 200 kHz 6.8 k 400 Hz 34 F 450Assume that the voltage drop across the resistor, ER, is 78 V; the voltage drop across the capacitor, EC, is 104 V; and the circuit has a total impedance, Z, of 20 . The frequency of the AC voltage is 60 Hz. Find the missing values. ET ER78V EC104V IT IR IC Z20 R XC VA P VARSC PF CActivity 2 – Let’s solve it! Solve and answer the following problems using the concepts of dielectric in capacitors. 1. Find the capacitance of a layer of ├ A┤|_2 O_3 that is 0.5 m thick and 2000 mm^2 of square area ( r= 8.854 x 10^(-12)Fm^(-1)).
- ELECTROMAGNETIC THEORY A 50 cm air-filled solenoid with a diameter of 10 cm has 700 turns. Calculate the self-inductancefor this inductor.Which statement best describes creating a circle? A. A place slices a double-napped cone parallel to the side (generator)B. A plane slices a double-napped cone parallel to the axis of symmetryC. A plane slices a double-napped cone paralell to the baseD. A plane slices a double napped cone neither parallel to the base nor perpendicular to the axis of symmetryThe relative dielectric constant is given as 2.5. The inside and outside radiuses are 0.5 mm and 2.5 mm Find the range of capacity if height of the capacitor varies from 1.0 to 2.0 cm? C= epsilon x 2pi x h / ln (b/a)
- 1.a charge parallel plate with 15F connected to a battery with 9V.When dielectric material was inserted between the parallel plates.what happen to the stored charges in the capacitor? 2.Find the capacitance of a layer of A|203 that is 0.5m thick and 200 mm2 of square area (r= 8.854 x10-12 Fm-1)DHA) A capacitor bushing forms arm ab of a Schering bridge and a standard capacitor of 500 pF capacitance and negligible loss, forms arm ad. Arm bc consists of a non-inductive resistance of 300 Q. When the bridge is balanced arm cd has a resistance of 72.6 2 in parallel with a capacitance 0.148 micro Farad. The supply frequency is 50 Hz. Calculate the capacitance and dielectric loss angle of capacitor. Derive the equations for balance and draw the phasor diagram under conditions of balance.Design a spherical shell to give a capacitance of 40 pF. You can use an insulator having a dielectric constant around 3.5. The radius of out shell of the sphere may not exceed 40 cm Course: Electromagnetic Field Theory