An evacuated tube uses an accelerating voltage of 83 kV to accelerate electrons to hit a copper plate and produce X-rays. How much voltage would be required to cause protons to reach the same speed an electron reaches? (We don't worry that the protons would be going in the opposite direction)

Q: (a) The potential difference between the plates of a 4.95-pF capacitor is 90 V. How much energy is…

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Q: A 12.5 mF capacitor is connected to a power supply that keeps a constant potential difference of…

A: In this case, the capacitor is connected to a power supply that keeps a constant potential…

Q: Calculate A) the capacitance of a capacitor having 320 nC of charge at 12 Volts. B) How many…

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Q: Rank the following five capacitors from greatest to smallest energy stored, noting any cases of…

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

A: The objective of the question is to calculate the magnitude of charge separated and energy stored in…

Q: A 6 nC charge is placed where the electric potential is 408 V. Calculate its electric potential…

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Q: A B D E -X +X -Q +4Q

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Q: person walks into a specially designed room where the ceiling and floor contain giant conducting…

A: A person walks into a specially designed room where the ceiling and floor contain giant conducting…

Q: In the figure below, the dashed lines show the equipotential lines of electric fields. (A charge…

A: Given:-  The dashed lines show the equipotential lines of electric fields. (A charge moving along a…

Q: A proton is shot to the left in an electric field pointing to the right as shown below. As the…

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Q: Suppose you went to Walmart or a grocery store with the intention of building a capacitor out of…

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Q: The work done by an exteal force to move a50 Ccharge from point A to point Bis 150 10the chargeas…

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Q: At what electric potential is 150 Coulombs of charge that has an electric potential energy of 30,000…

A: Solution: Given that Q = 150 C PE = 30000 J

Q: It takes 10 J of energy to move 2 C of charge from point a to point b. What is the potential…

A: Work done, W = 10 J Charge, Q = 2 C   Work done = Potential difference x Charge or W = VQ or V = W/Q…

Q: The simulation is for a charged capacitor that is NOT attached to a battery.  This means that the…

A: Let a dielectric of dielectric constant k is inserted into the capacitor. When there is no…

Q: Two particles with charges +2e and -5e are initially very far apart (effectively an infinite…

A: first charge (q1) = 2e second charge (q2) = -5e initial distance (di) = infinte distance apart final…

Q: Determine the potential in a capacitor with w capacitance of 250 µF and has a total charge of 350 nC…

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Q: 24 b -2q 3q (i)

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Q: You have learned concept of Electric Potential energy, electric potential and capacitor.  Pick any…

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Q: If the electric potential at a point in space is considered to be zero, what can be said with…

A: The relationship between the electric field and electric potential is given by: E=∆Vd Where; E is…

Magnetic Field Of Coaxial Cable

The word coaxial means same axis. So for a long straight cable to be coaxial, it must have concentric cylindrical shaped conductor around it. Coaxial cable (popularly called ‘coax’) has various applications ranging from current conductors to radiofrequency signal transmitters. This cable has lower emission losses and provides protection from electromagnetic interference which allows signals with less power to transmit over longer distances.For example, currents produced in the pickup of a stereo turntable generally travel to the amplifier through a coaxial cable.The self-inductance of a coaxial cable is another important characteristic, because it influences the propagation of electrical signals in the cable.