Power P0 = I0ΔV0 is delivered to a resistor of resistance R0. If the resistance is tripled (Rnew = 3R0) while the voltage is adjusted such that the current is constant, what are the ratios Pnew P0 and ΔVnew ΔV0? If, instead, the resistance is held constant while Pnew = 3P0, what are the ratios ΔVnew ΔV0, and Inew I0

Power P0 = I0ΔV0 is delivered to a resistor of resistance R0. If the resistance is tripled (Rnew = 3R0) while the voltage is adjusted such that the current is constant, what are the ratios Pnew P0 and ΔVnew ΔV0? If, instead, the resistance is held constant while Pnew = 3P0, what are the ratios ΔVnew ΔV0, and Inew I0

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter17: Current And Resistance

Section: Chapter Questions

Problem 10CQ: Power P0 = I0 V0 is delivered to a resistor of resistance R0. If the resistance is doubled (Rnew =...

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Question

Power

P₀ = I₀ΔV₀

is delivered to a resistor of resistance

R₀.

If the resistance is tripled

(R_new = 3R₀)

while the voltage is adjusted such that the current is constant, what are the ratios

P_new

P₀

and

ΔV_new

ΔV₀

If, instead, the resistance is held constant while

P_new = 3P₀,

what are the ratios

ΔV_new

ΔV₀

and

I_new

I₀

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