Physics Laboratory Manual
4th Edition
ISBN: 9781133950639
Author: David Loyd
Publisher: Cengage Learning
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Chapter 26, Problem 7PLA
Why is it important to center the electrodes on the resistance paper for this laboratory?
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Chapter 26 Solutions
Physics Laboratory Manual
Ch. 26 - Electric field lines are drawn (a) from positive...Ch. 26 - The points where the potential is the same (in...Ch. 26 - The points where the potential is the same (in...Ch. 26 - The relationship between the direction of the...Ch. 26 - Why are the measured equipotentials lines instead...Ch. 26 - If two electrodes have a source of potential...Ch. 26 - Why is it important to center the electrodes on...Ch. 26 - In the performance of this laboratory, what is the...Ch. 26 - On what basis are you to decide how many points to...
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- The current-versus-voltage behavior of a certain electrical device is shown in Figure OQ21.3. When the potential difference across the device is 2 V, what is its resistance? (a) 1 (b) 34 (c) 43 (d) undefined (e) none of those answersarrow_forwardShown below are the results of an experiment where four devices were connected across a variable voltage source. The voltage is increased and the current is measured. Which device, if any, is an ohmic device?arrow_forwardUse the atomic theory of matter to explain why the resistance of a material should increase as its temperature increases.arrow_forward
- Given a battery, an assortment of resistors, and a variety of voltage and current measuring devices, describe how you would determine the internal resistance of the battery.arrow_forwardWhy is it possible for a bird to sit on a high-voltage wire without being electrocuted?arrow_forwardConstruct Your Own Problem Consider a battery used to supply energy to a cellular phone. Construct a problem in which you determine the energy that must be supplied by the battery, and then calculate the amount of charge it must be able to move in order to supply this energy. Among the things to be considered are the energy needs and battery voltage. You may need to look ahead to interpret manufacturer’s battery ratings in ampere hours as energy in joules.arrow_forward
- Consider the circuit shown below. The terminal voltage of the battery is V = 18.00 V. (a) Find the equivalent resistance of the circuit, (b) Find the current through each resistor, (c) Find the potential drop across each resistor, (d) Find the power dissipated by each resistor, (e) Find the power supplied by the battery.arrow_forwardConsider the circuit shown below. The terminal voltages of the batteries are shown, (a) Find the equivalent resistance of the circuit and the current out of the battery, (b) Find the current through each resistor, (c) Find the potential drop across each resistor, (d) Find the power dissipated by each resistor, (e) Find the total power supplied by the batteries.arrow_forwardThe current supplied by a battery in a portable device is typically 0.15 A. Find the number of electrons passing through the device in one hour.arrow_forward
- In Figure P21.47, show how to add just enough ammeters to measure every different current. Show how to add just enough voltmeters to measure the potential difference across each resistor and across each battery.arrow_forwardWhy Does The Resistance Of A Conductor Increase With An Increase In Temperature?arrow_forwardConsider a nerve cell that transfers charge across a cell mem- brane. If 1.5 pC of charge flow in 2.9 ms,what is the current through the membrane? (include units)arrow_forward
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Ohm's law Explained; Author: ALL ABOUT ELECTRONICS;https://www.youtube.com/watch?v=PV8CMZZKrB4;License: Standard YouTube License, CC-BY