College Physics

11th Edition
Raymond A. Serway + 1 other
ISBN: 9781305952300



College Physics

11th Edition
Raymond A. Serway + 1 other
ISBN: 9781305952300
Textbook Problem

Power P0 = I0 ΔV0 is delivered to a resistor of resistance R0. If the resistance is doubled (Rnew = 2R0) while the voltage is adjusted such that the current is constant, what are the ratios (a) Pnew/P0 and (b) ΔVnewV0? If, instead, the resistance is held constant while Pnew = 2P0, what are the ratios (c) ΔVnewV0, and (d) Inew/I0?


To determine
The ratio PnewP0 .


Given Info: Power P0=I0ΔV0 is delivered to resistor of resistance R0 The resistance is doubled, (Rnew=2R0) while voltage is adjusted and current is kept constant.


Formula to calculate the power delivered to resistor R0 is,


  • P0 is the power delivered to resistance R0
  • I0 is the current passes through resistance R0
  • ΔV0 is the voltage across the resistance R0
  • R0 is the resistance

Formula to calculate ΔV0 is,


Use I0R0 for ΔV0 in above relation to rewrite P0 .

P0=I02R0 (I)

Formula to calculate the power delivered after resistance is doubled


To determine
The ratio Vnew/V0 .


To determine
The ratio Inew/I0 .

Still sussing out bartleby?

Check out a sample textbook solution.

See a sample solution

The Solution to Your Study Problems

Bartleby provides explanations to thousands of textbook problems written by our experts, many with advanced degrees!

Get Started

Additional Science Solutions

Find more solutions based on key concepts

Show solutions add

Before athletic competitions, a moderate caffeine intake may interfere with concentration. may enhance performa...

Nutrition: Concepts and Controversies - Standalone book (MindTap Course List)

How might nutritional genomics influence health care in the future?

Understanding Nutrition (MindTap Course List)

Make the following temperature conversions:

Chemistry & Chemical Reactivity

What is the life expectancy of a 16-solar-mass star?

Horizons: Exploring the Universe (MindTap Course List)