(c) The energy, W (measured in joules, J) stored in an inductor, L = 7 mH + a %, can be expressed as follows: W = L12 (i) Find the dimensions of L using the formula above.
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- A capacitor uses air as a dielectric and has a capacitance of 3 F. A dielectric material is inserted between the plates without changing the spacing, and the capacitance becomes 15 F. What is the dielectric constant of this material?The switch (SW) in the circuit is opened for a long time shown Figure 2. A. Calculate the expression of the current of inductor. B. find the value of the current of inductor at t-20 msec. 30 20 10 sa Figure 2Draw block diagrams for each of the following elements, first voltage as input and current as output, and then vice versa: a. resistance, b. capacitance, c. inductance.
- Solve the following values in figure 1.0. Total Capacitance, Ct. Total Charge, Qt. Individual Charge of C1 Individual Charge of C2 Individual Charge of C3Which of the statements below are correct I. Capacitors use electric field to store current. II. Inductance is increased with permeability of the core material. III. Capacitance of a capacitor decreases with the increasing permittivity of the dielectric. IV. Current of an inductor can not change abruptly. a. Il and IV b. I and || C. None d. III and IV e. Il and IIIn the shown figure, If C= 24 uF and If V-V=12 V, determine the charge (in uC) stored by the capacitor 2C? V. 2C I I 3C
- Q1 (a) For the circuit in Figure Q1(a), the total charge, Q. is 0.0018 C. (i) Find the value of capacitance, C2 (ii) Calculate the voltage, Vi across capacitor C. (iii) Determine the charge, Qa stored in capacitor C4 C1 Qt +V- 40μF C3 C2 10F 10uF C4 90 V Figure Q1(a)Q1 (a) For the circuit in Figure Q1(a), the total charge, Q. is 0.0018 C. (i) Find the value of capacitance, C2 (ii) Calculate the voltage, Vị across capacitor Cj. (iii) Determine the charge, Q4 stored in capacitor C4 C1 Qt +V- 40µF C3 CA 90 V C2 10F 10uF Figure Q1(a)The network Nc shown below in Figure 1.99(a) contains a combination of scaled capaci- tors in series and parallel connections. Using the vahues as shown, you are asked to do the following. (a) Calculate the value of the terminal capacitance Cab at terminals a-b. (b) To obtain an equivalent capacitance Ceq of 1.5F, Nc is to be placed either in series with a capacitance Cz as shown in Figure 1.99(b) or in parallel with Cx as shown in Figure 1.99(c). Determine which connection is correct and calculate the value of C; that will produce the value of 1.5F for Ceg- 4F 2F 3F 1F C OF (a) N. N. 2. (b) (c) Figure 1.99 (a) Capacitor combo Nc (b) Nc in series with C, (c) Ne in parallel with C,
- a) Obtain the equivalent capacitance in pF b) Determine the charge Q1, Q2, and Q4 (nC) at the capacitor C1, C2, and C4 c) Solve the voltage (V) across C1, C2, C3, C4 (USE 2 DECIMAL PLACES FOR THE FINAL ANSWERS)Consider the diagram of the following figure: Determine the charge voltage and energy of each of the capacitors. Make and complete your data table, if the voltage is 300 V C UF C₁= 30 C₂=60 C₁=22 C=74 Cs=32 Co=45 q μC V V W E 300 60μF 22HF C2 C3 30MF C1 CA 74 MF C5 32AF :C6 45MFQ1 (a) (b) (c) State the meaning of primary cells. What is the 3 factors affecting capacitance value? State the formula of capacitance in part (b).