Q₁: An electron starts from rest at the negative plate of a plane- parallel capacitor 2 cm and having a potential difference of 1500 V. How long does it take to rea 107 m/s and what position does it reach at this speed? Ans: 7.57x10-10 s; 0.38 cm.
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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?A 15-F AC capacitor is connected in series with a 50 resistor. The capacitor has a voltage rating of 600 WVDC. The capacitor and resistor are connected to a 480-V, 60-Hz circuit. Is the voltage rating of the capacitor sufficient for this connection?You are an electrician working in an industrial plant. You discover that the problem with a certain machine is a defective capacitor. The capacitor is connected to a 240-volt AC circuit. The information on the capacitor reveals that it has a capacitance value of 10 mF and a voltage rating of 240 VAC. The only 10-mF AC capacitor in the storeroom is marked with a voltage rating of 350 WVDC. Can this capacitor be used to replace the defective capacitor? Explain your answer.
- A postage stamp mica capacitor has the following color marks starting at the upper left dot: yellow, violet, brown, green, no color, and blue. What are the capacitance value, tolerance, and voltage rating of this capacitor?Q19. 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.Determine the total capacitance, total charge, individual voltage drop and charges across across each capacitor. Use two decimal places for your answer. Please put your answer for the individual voltage and charge for each capacitor in a table for faster checking. Thank you! C1= 27 F C2= 53 F C3= 21 F C4= 50 F C5= 17 F C6= 22 F C7= 45 F C8= 16 F C9= 25 F C10= 16 F V= 110 V Note: This topic is under capacitors.
- Question 20 Consider a parallel connection of two capacitors. They were detached from the potential source after being charged, and dielectrics were placed into both of them. Which of the following events occurs? O Across each capacitor, the potential changes but the charge does not. O Across each capacitor, the potential changes but the charge does not change. O The potential and the charge across each capacitor does not change. O The potential and the charge across each capacitor changes. O none among the choiceshow do i calculate the inverse capacitance and its uncertainty if the capacitance value 1.8748+/- 0.0006. please show steps im using this example to do my other values.Please explain this question properly A capacitor has a reactance of 40 when operated on a 50 Hz supply. Determine the value of its capacitance. In a series R–L circuit the p.d. across the resistance R is 12V and the p.d. across the inductance L is 5V. Find the supply voltage and the phase angle between current and voltage
- Determine the total capacitance, total charge, individual voltage drop and charges across each capacitor. Use two decimal places for your answer. Put your answer for the individual voltage and charge for each capacitor in a table for faster checking. Thank you! Here are the values for the capacitors: C1 = 34 C6 = 29 C2 = 46 C7 = 38 C3 = 28 C8 = 23 C4 = 43 C9 = 32 C5 = 24 C10 = 23Support that there. Icincuit Esithu an reasistanee on the and capacitance of /4 F. The EMF is ) 4 Cos 2t , The initial is an RC Cnerat current. The alternating cincuit is '/ 2 L Elt) the cincuit is qu(0) = 1V. Find the charge on the cincuit after t seconds. charge onA capacitor has a reactance of 40 when operated on a 50 Hz supply. Determine the value of its capacitance. In a series R–L circuit the p.d. across the resistance R is 12V and the p.d. across the inductance L is 5V. Find the supply voltage and the phase angle between current and voltage