1. Charging by conduction negative Before negative During Aegative After nevtral electrons move negative ebonite rod in electroscope electroscope electroscope +
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- Forthecapacitorsconnected as in thefollowingfigureandtheappliedpotential, a) Determinetheeguivalentcapacitance of thecircuit. b) Determinethechargeandthepotentialdifferenceacrosseachcapacitor. c) Determinethestoredelectricalenergy in thecircuit. C;=3Y µF C4=3Y µF XY Volt C3=2Y µF C3=3Y µF C-3Y μF C3=3Y µF Y=71- A current of 2 ụA is discharged on a capacitor with a plate area of 100 cm² and a capacitance of 1x10-7F at t=0. At what rate does the voltage between the plates change at t=0?A) 5V/sB) 20V/sC) 10 V/sD) 15V/sE) 25V/s7. An arc lamp taker 10 A at 5o vo Hs. A recictanceRK to be phce in senes so that the lamp may burn correctly from power wasted in a lbvsupply. Fnd the this rerictor.
- Major Concepts - An object moving at a constant [Select] - A 10-kg object at rest that is 5 m above the ground will have a [Select] [Select] - equal to 0 J. will have a(n) [Select] - In projectile motion situations where air resistance is ignored, the The current through a [Select] [Select] of 0 m/s². equal to 500 J and a Electromagnetic radiation: Longer EM waves such as microwaves, radio, and infrared waves [Select] velocity (vx=Vox) is constant. circuit loop is the same everywhere and it doesn't get split at any junction. - Katie and Hasan have the same weight (60 N) and they run up the same flight of stairs that is 3 m high. Katie does it faster, though. Hasan used [Select] Katie because he took longer. shorter EM waves such as UV, x-rays, and gamma rays. - Freefall: If they are dropped from the same height and ignoring air resistance, a heavy object (such as a 350 kg piano) will fall to the ground [Select] a lighter object (such as a 15 kg television). - A 200 kg motorcycle moving…Could a person on intravenous infusion (an IV) be microshock sensitive?(Indicates a review question, which means it requires only a basic understanding of the material to answer. Questions without this designation typically require integrating or extending the concepts presented thus far.) . A 20-A fuse in a household electric circuit burns out. What catastrophe could occur if it is replaced by a 30-A fuse?
- Check Your Understanding Verify that /V and e0/d have the same physical units.(Indicates a review question, which means it requires only a basic understanding of the material to answer. Questions without this designation typically require integrating or extending the concepts presented thus far.) . There are two basic methods for connecting more than one electrical device in a circuit. Name, describe, and give the advantages of each.The immediate cause of many deaths is ventricular fibrillation, an uncoordinated quivering of the heart, as opposed to proper beating. An electric shock to the chest can cause momentary paralysis of the heart muscle, after which the heart will sometimes start organized beating again. A defibrillator is a device that applies a strong electric shock to the chest over a time of a few milliseconds. The device contains a capacitor of a few microfarads, charged to several thousand volts. Electrodes called paddles, about 8 cm across and coated with conducting paste, are held against the chest on both sides of the heart. Their handles are insulated to prevent injury to the operator, who calls Clear! and pushes a button on one paddle to discharge the capacitor through the patient's chest Assume an energy of 3.00 102 W s is to be delivered from a 30.0-F capacitor. To what potential difference must it be charged?
- The batteries of a submerged non-nuclear submarine supply 1000 A at full speed ahead. How long does it take to move Avogadro’s number (6.02 1023) of electrons at this rate?How much currenta) flows in a wire 4.80m long if the maximum force on it is 0.725N when placed in a uniform 0.0800T field? b) flows through a device with a resistance of 9.7ohms when connected to a 112V supply? How much charge passes through the device in an hour?1. Calculate the potential due to a dipole as shown in the figure at positions A and B in millivolts. 2. What would be the potential at Bif the distance from the dipole center to B is doubled,. 3. What would be the potential at A if the intensity of the current source is doubled. +2mA B =12em F 10mm 20 degree 90 degree r95 cm A. Resistivity = 75 Ohm-cm -2mA Dipole