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- We want to investigate how the field strength will be with air as dielectric and with steatite. A plate capacitor is placed in a 24 kV network between phase and ground. The relative permittivity of air is &=1 and for steatite &-6. The plate capacitor has area = 1m². The distance between the electrodes is 2 mm. Ep = 8.854-10-12 F/m A=1m² d=2mm a) Calculate the maximum field strength in the plate capacitor. (Answer: 9.8kV/mm) b) What is the capacitance of the capacitor if we use steatite? (Answer: C = 26.6nF)QUESTION 5 A 20 ohms resistor is connected in series with a capacitor of 0.01 farad and an emf in volts given by 40e-3¹ +20e-6. Assuming that the charge and current on the capacitor are zero at t=0, determine the charge and current at any time.An inductor is constructed by winding a coil of 100 turns around a magnetic core. The core is a cylinder with radius 0.5 cm and the core material has relative permeability of 1000. The coil covers a length of 10 cm. Determine the resulting inductance. Enter your answer in mH rounded to two decimal places.
- Where is electrical energy stored in an inductor? O In the electric field surrounding its coils. O In the magnetic field surrounding its coils. O In both the electric and magnetic field surrounding its coils. O An inductor never stores electrical energy.Problem 1301 A-capacitor whose plates is 20 cm x 3.0 cm and is separated by a 1.0-mm air gap is connected across a 12-V battery. Determine the charge accumulated on each plate after a long time. A. 5.3 x 10-12 c B. 7.2 x 10-C C. 8.1x 10-11 c D. 6.4 x 10-10 CQ19. For the series-parallel inductor circuit shown in figure B19, answer the following questions. L2 2mH 4mH L3 L4 SMHS 5mH 3.5mH L6 8mH L7 2mH L3 4.5mH e Figure B19 Determine the inductance, L3 value. ii) If E is the energy stored in inductor for current, Calculate the energy if the current value is increased twice.
- Electric field terminates at. Both positive and negative Positive charge Negative charge Neither positive nor negative4. Find the net potential (voltage) at pt. p produced by the charges as shown in the figure. Q8= +1uC Q3=-6nC Q4=-3nC 1m pt.p Q2=+5nC Qs=-5nC 1m 2m 2m Qı=+3nC Q6=+6nC Q7=+1nC1) The switch in the ciruit, shown in belou has been in Posikon "a" for a long hime. At t=0, the switch moves instantancously ho positron "b". Find volt) for t70 960n 1602 o.SmH 28V 12-5 nF 20v Volt)
- what is the B and the m variable in the repulsive force rule and how did we get it from coloumb's law i think?Okay for Determine the mathematical expression for the voltage vC and the current iC for the discharge phase. I got Vc = 8e-t/0.2s V and iC = -4e-t/0.2mA But I need help with the last question Plot the waveforms of vC and iC for a period of time extending from 0to 2 s from when the switch was thrown into position 1.An air filled parallel-plate capacitor is connected to a 12 Volts battery, the battery is disconnected when it is fully charged to 7.3 nC. The separation distance between the plates is d1= 8 cm. Now, If the plates are moved to a new distance d233 cm. the new energy stored in the capacitor is O a. 13.14 nJ O b. 8.21 nJ O c. 1.64 nJ O d. 10.96 nJ O e. 5.47 nJ O f. 16.42 nJ