The power dissipated in a resistor is given by P V 2 R, which means power decreases if resistance increases Yet this power is also given by P I 2 R, which means power increases if resistance increases Explain why there is no contradiction here ...

The apparent contradiction arises from the fact that the power dissipated in a resistor can be expre ...

The power dissipated in a resistor is given by P = V 2 /R, which means power

Question:

The power dissipated in a resistor is given by P = V²/R, which means power decreases if resistance increases. Yet this power is also given by P= I² R, which means power increases if resistance increases. Explain why there is no contradiction here.

Fantastic news! We've Found the answer you've been seeking!

Step by Step Answer:

Related Book For book-img-for-question

College Physics

ISBN: 9781711470832

2nd Edition

Authors: OpenStax

See More Books

Question Posted: Nov 23, 2023 12:45 AM

See More Questions

The equation P = V2/R indicates that the power dissipated in a resistor decreases if the resistance is increased, whereas the equation P P R implies the opposite. Is there a contradiction there?...
(Multiple choice) (1) Two wires of the same material with the same length have different diameters. Wire A has twice the diameter of wire B. If the resistance of wire B is R, then what is the...
The current in a resistor is given by I = (8.0 A) sin (40t) when a voltage given by V = (60 V) sin (40t) is applied to it. (a) What is the resistance value? (b) What are the frequency and period of...
(SI Units) In a tensile test, the starting gage length = 100.0mm and the cross-sectional area = 150 mm2. During testing, thefollowing force and gage length data are collected: (1) 17,790 N at100.2...
Distinguish between the present value of an annuity due and the present value of a deferred annuity. Draw a time line of each.
Howard Murphy is the owner of Stormy Banana Films in West Hollywood, California. Stormy Banana Films had 15 employees with total annual wages of $214,750 (no one exceeded the Medicare tax surcharge...
I:12-38 Involuntary Conversion: Different Methods of Replacement. On September 3, 2022, Federal Corporations warehouse is totally destroyed by fire. $800,000 of insurance proceeds are received, and...
The following information is available for Vega Manufacturing Company for the monthe ending July 31, 2012: Cost of goods manufactured ..........$270,000 Selling expenses ................ 58,000...
11. In the first month of operations, the total of the debit entries to the Cash account amounted to $3,000 and the total of the credit entries to the Cash account amounted to $1,800. The Cash...
Give an example of a use of AC power other than in the household. Similarly, give an example of a use of DC power other than that supplied by batteries.
Why do incandescent lightbulbs grow dim late in their lives, particularly just before their filaments break?
Each year, the National Highway Traffic Safety Administration (NHTSA) crash tests new car models to determine how well they protect the driver and front-seat passenger in a head-on collision. The...
Your company has a travel policy that reimburses employees for the "ordinary and necessary" costs of business travel. Employees often mix a business trip with pleasure by either extending the time at...
Simulation A: 1 Diameter 600 mm 2 Focal Length 1800 mm 3 F/D Ratio 3 4 Eyepieces 30 m 5 Barlow? N 6 Celestial Sights M42 - M31 - M51 Simulation B: 1 Diameter 150 mm 2 Focal Length 1800 mm 3 F/D Ratio...
Perpetual Inventory Control Record Description: M & B Supreme Date Purchase Received Issued Sales Units Unit Cost June 1 Balance forward 3 $10.00 4 2 6 8 9 $10.50 9 12 32 3 6 2 4 15 6 10 $11.00 18 20...
A rectangular footing of size 4m by 5m is founded at 2m below ground level in a uniform deposit of saturated clay. The footing is designed to support a total vertical load of 8000 kN inclusive of the...
P6.2 At the start of Tom Stoppard's "Rosencrantz and Guildenstern are dead" 1, Rosencrantz finds a coin. Guildenstern watches as Rosencrantz repeatedly tosses the coin and every time it comes down...
How many "words" of k letters can be made from the letters (a, b) if there are no adjacent a's?
a. What is meant by the term tax haven? b. What are the desired characteristics for a country if it expects to be used as a tax haven? c. What are the advantages leading an MNE to use a tax haven...
Explain how decreased domestic investments that occur due to a budget deficit will affect future economic growth.
Assume there is no discretionary increase in government spending. Explain how an improving economy will affect the budget balance and, in turn, investment and the trade balance.
Explain how cuts in funding for programs such as Head Start might affect the development of human capital in the United States.
Gen-X Ads Co. produces advertising videos. During the current year ending December 31, Gen-X Ads received the following notes: Note Date Face Amount Term Interest Rate 1. January 14 $33,000 30 days...
Declining Products Corporation produces goods that are very mature in their product life cycles. Declining Products Corporation is expected to pay a dividend in year 1 of $1.00, a dividend of $0.90...
If the coefficient correlation between x and y is 0.4, the covariance between them is 0.8 and standard deviation of y is 0.2, variance of x would be 0.1 10 100 0.01 1

The power dissipated in a resistor is given by P = V 2 /R, which means power

Question:

Step by Step Answer:

The apparent contradiction arises from the fact that the power dissipated in a resistor can be expre...View the full answer

College Physics

Students also viewed these Physics questions