How do I do number 3? SU Vd. What is the %E between the calculated value for R & the value given in the circuit diagram?%E=experimentar- - theoreticalltheoretical* 100%166.7-2001* 100% = 66.65%200e. How can we reposition the voltmeter to reduce this error, & why will this position work?Moving the voltmeter toseries connectionthe error toinstead of a50%.parallel connection would reduce3. If we use 1/2 watt resistors with a 50 V power supply, what is the smallest resistance, R that we can usewithout causing damage to the resistor? Show calculations.your17 Jul 141Physics2-Hartley

Write the expression for the power. Here, V is the voltage and R is the resistance.

Answered: 3. If we use 1/2 watt resistors with a…

3. If we use 1/2 watt resistors with a 50 V power supply, what is the smallest resistance, R that we can use without causing damage to the resistor? Show your calculations.

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter10: Direct-current Circuits

Section: Chapter Questions

Problem 69AP: Consider the circuit below. The battery has an emf of = 30.00 V and an internal resistance of r =...

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Concept explainers

Temperature Variance of Resistance

Electrical resistance or simply resistance is the property of a material that opposes the free flow of electrons through it. The total amount of resistance to the flow of charges (or current) is affected by many factors like the length of the conducting material, its cross-sectional area, resistivity, and temperature.

Question

How do I do number 3?

SU V
d. What is the %E between the calculated value for R & the value given in the circuit diagram?
%E=
experimentar- - theoreticall
theoretical
* 100%
166.7-2001
* 100% = 66.65%
200
e. How can we reposition the voltmeter to reduce this error, & why will this position work?
Moving the voltmeter to
series connection
the error to
instead of a
50%.
parallel connection would reduce
3. If we use 1/2 watt resistors with a 50 V power supply, what is the smallest resistance, R that we can use
without causing damage to the resistor? Show calculations.
your
17 Jul 14
1
Physics2-Hartley

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