I once met a capacitor named Johio. One day when Johio was fully-charged, I determined that its capacitance was 84 F. Of course, no one stays fully charged forever and Johlo was no exception. Last time I saw Johio, it was two-fifths charged. Determine what Johio's capacitance was when it was two-fifths charged. MacBook Air

Q: A capacitor has a charge of 7 µC when connected to a 4-V battery. How much energy is stored in this…

A: Given that the charge on capacitor Q= 7 micro Coloumb It connected with 7 volt battery That is V= 4…

Q: An electrocardiography (ECG) monitor used in a hospital uses a single 15-F capacitor. During your…

A: Given: The available capacitors are 1 F, 4 F, 6 F, 10 F, 12 F, 20 F, and 30 F.

Q: A solid cylindrical conductor of radius 2.1 cm is coaxial with a cylindrical shell of negligible…

A: Given solid cylindrical conductor of radius 2.1 cm This is coaxial with cylindrical shell of radius…

Q: A defibrillator consists of a battery (slow, but stores a lot of energy) connected to a capacitor…

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Q: A galvanometer has an internal resistance of 100 ohms and measures only 250HA when it is full scale…

A: Internal resistance of galvanometer is Rg = 100 ohms Current passing through the galvanometer is…

Q: Three capacitors are connected to a DC battery (with an electric potential difference of V between a…

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Q: A professor designing a class demonstration connects a parallel-plate capacitor to a battery, so…

A: Solution:   Given Values,   Area(A)=25 cm2=25×10-4 m2 Plate separation(d)=1.33 cm=1.33×10-2 m…

Q: 3- Two capacitors are placed in parallel with each other. They have capacitances of 3.25 and 5.00…

A: Charge on the capacitor can be calculated as , Q=CV, In parallel combination,  C=C1+C2

Q: 51. Find the equivalent capacitance between points a and b in the combination of capacitors shown in…

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Q: A 20 µF capacitor is connected to a 60 V battery.  Calculate the energy stored in capacitor.

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Q: An 2600 pFcapacitor holds plus and minus charges of 13.5 x 10-8 C. What is the voltage across the…

A: Given, Capacitance of capacitor (C) = 2600pF Charge o. Capacitor (q) = 13.5×10-8 C  We want to find…

Q: The capacitor is a parallel plate capacitor with a vacuum between the square plates. What is the…

A: The expression for the capacitance of parallel-plate capacitor is as follows: C=Aε0dA=Cdε0…

Q: Pick the graph that could represent the plot of capacitance versus plate area for a parallel place…

A: The capacitance of a parallel plate capacitor is given as: C = εAd Where, A is area of the platesd…

Q: capacitor consists of two closely spaced metal conductors of large area, separated py a thin…

A: The energy stored in the capacitor is, E=12CV2=123600 μF10-6 F1 μF87 V2=13.6 J Find the charge…

Q: Two capacitors, C1=5µF and C2=12µF, are connected in parallel, and the resulting combination is…

A: The capacitance of the given capacitors are C1=5μFC2=12μF Now if the capacitors are connected in…

Q: apacitor is charged to 6.0 kV and then removed from the battery and connected to an uncharged 69-pF…

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Q: A 0.49-µF capacitor is connected to a 12-V battery. What is the magnitude of the charge on each…

A: Given data: Capacitance (C) = 0.49 μF Battery voltage (V) = 12 V Required: The magnitude of the…

Q: A parallel-plate capacitor is connected to a battery and stores 4.9 nC of charge. Then, while the…

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Q: Calculate the energy stored in a 11 μF capacitor when it is charged to 110 V A 66.55mJ B D 77.66 mJ…

A: Given,  Capacitance C= 11 microfarad. Voltage = 110 V We need to calculate,  Energy Stored =?

Q: What is the energy stored in the 14.5 μF capacitor of a heart defibrillator charged to 8750 V?…

A: Given Capacitance C = 14.5 μ F  = 14.5 × 10-6 F Potential difference V = 8750 V

Q: I need helpo with this question right here! thanks in advance! I think the answer is option 4 but i…

A: Consider two capacitors C1 and C2 connected in parallel configuration with battery potential V.…

Q: A parallel combination of a 1.21 µF capacitor and a 2.51 µF capacitor is connected in series to a…

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Q: Problem #7: Chapter 20, Problem #59 59. W (a) A 3.00-μF capacitor is connected to a 12.0-V battery.…

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Q: The charge stored on a capacitor is 76.0 μC when a 29.0 V battery is connected to it. However, if…

A: Given: The charged sored on the capacitor is 76 μC when potential difference is 29 V. To find: The…

Dielectric Constant Of Water

Water constitutes about 70% of earth.  Some important distinguishing properties of water are high molar concentration, small dissociation constant and high dielectric constant.

Electrostatic Potential and Capacitance

An electrostatic force is a force caused by stationary electric charges /fields. The electrostatic force is caused by the transfer of electrons in conducting materials. Coulomb’s law determines the amount of force between two stationary, charged particles. The electric force is the force which acts between two stationary charges. It is also called Coulomb force.