Physics Laboratory Experiments
8th Edition
ISBN: 9781285738567
Author: Jerry D. Wilson, Cecilia A. Hernández-Hall
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Textbook Question
Chapter 24, Problem 4Q
For each of the circuits used in the preceding question, for what values of R (large or small) does the error in taking R as equal to V/I become large enough to be important?
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
We would like to use the relation V(t)=I(t)R to find the voltage and current in the circuit as functions of time. To do so, we use the fact that current can be expressed in terms of the voltage. This will produce a differential equation relating the voltage V(t) to its derivative. Rewrite the right-hand side of this relation, replacing I(t) with an expression involving the time derivative of the voltage.
Express your answer in terms of dV(t)/dt and quantities given in the problem introduction.
It appears my answer to question ii, the RMS value is incorrect as the coefficient should be 1 over pi not 1 over 2pi.
Grateful, for bit help please.
Thanks
What similarities can you draw between the formulas of finding the capacitance and resistance in series and parallel circuits?
Aside from P=IV, what other ways can we obtain power using Ohm's Law?
Chapter 24 Solutions
Physics Laboratory Experiments
Ch. 24 - Prob. 1ASACh. 24 - Is (a) an ammeter and (b) a voltmeter connected in...Ch. 24 - Why is the Wheatstone bridge called a null...Ch. 24 - When the galvanometer in a Wheatstone bridge...Ch. 24 - For a slide-wire Wheatstone bridge, why should the...Ch. 24 - An ideal ammeter would have zero resistance, and...Ch. 24 - If, in general, R were calculated as R = V/I,...Ch. 24 - (a) Prove that the true resistance R is given by...Ch. 24 - For each of the circuits used in the preceding...Ch. 24 - Why should the wires connecting the resistances...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.Similar questions
- A network of resistors of resistances R1 and R2 extends to infinity toward the right. Prove that the total resistance RT of the infinite network is equal to:arrow_forwardFor the circuit shown below, the voltage across the resistor R3 is equal to ?arrow_forwardWhat is the value of the time constant (in ms) for the circuit below?arrow_forward
- In the circuit above, where u will put your ammeter to measure the required current, write all possible positions?arrow_forwardThe effective capacitance of the circuit below isarrow_forwardThe electric current I in a circuit shown in the figure was measured as a function of the resistance R in the circuit. The relationship between I and R is given by ?=??+? where ? is the emf of the battery in the circuit and r is the internal resistance of the battery. a) Linearise the equation above, and state which variable you would plot on the x-axis and which on the y-axis. b) How are ? and r related to the gradient and/or y-intercept of the graph?arrow_forward
- On the basis of your second set of data, are there any patterns to the way that currents behave in a parallel circuit? At this time you should be able to write the general characteristics of currents, voltages and resistances in parallel circuits.arrow_forwardAn electrical circuit contains a capacitor of Z picofarads and a resistor of X ohms. If the capacitor is fully charged, and then the voltage is interrupted, in how much time will about 95% of its charge be transferred to the resistor? Show your calculations.arrow_forwardIn the given figure, six resistors are connected in combination of series and parallel. Given the values of each resitance find the following and show your solution. a) Total resistance b) Total currentarrow_forward
- What is the equivalent resistor, in units of Ohm, between the terminals a and b if you replace R1 by 4 Ohm, R2 by 1 Ohm and R3 by 5 Ohm resistor? Your result must contain two decimal places. Maximum of 5% of error is accepted in your answer.arrow_forwardFor the bridge circuit shown below, consider ?1 = 4Ω, ?2 = 6Ω, ?3 = 2Ω, ?4 = 7Ω, ?5 = 5Ω, and calculate the following: a) The current flowing in each resistor. b) The equivalent resistance of the circuit across the battery.arrow_forwardWrite the equations that describe the current and the capacitor voltage as a function of time?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
How To Solve Any Resistors In Series and Parallel Combination Circuit Problems in Physics; Author: The Organic Chemistry Tutor;https://www.youtube.com/watch?v=eFlJy0cPbsY;License: Standard YouTube License, CC-BY