Problem 55745. Voltage in a lamp

Created by Tanya Kuruvilla

Solve Later

<div style = "text-align: start; line-height: 20.4333px; min-height: 0px; white-space: normal; color: rgb(0, 0, 0); font-family: Menlo, Monaco, Consolas, monospace; font-style: normal; font-size: 14px; font-weight: 400; text-decoration: rgb(0, 0, 0); white-space: normal; "><div style="block-size: 72px; display: block; min-width: 0px; padding-block-start: 0px; padding-top: 0px; perspective-origin: 407px 36px; transform-origin: 407px 36px; vertical-align: baseline; "><div style="block-size: 42px; font-family: Helvetica, Arial, sans-serif; line-height: 21px; margin-block-end: 9px; margin-block-start: 2px; margin-bottom: 9px; margin-inline-end: 10px; margin-inline-start: 4px; margin-left: 4px; margin-right: 10px; margin-top: 2px; perspective-origin: 384px 21px; text-align: left; transform-origin: 384px 21px; white-space: pre-wrap; margin-left: 4px; margin-top: 2px; margin-bottom: 9px; margin-right: 10px; "><span style="block-size: auto; display: inline; margin-block-end: 0px; margin-block-start: 0px; margin-bottom: 0px; margin-inline-end: 0px; margin-inline-start: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; perspective-origin: 380.5px 8px; transform-origin: 380.5px 8px; unicode-bidi: normal; "><span style="">A lamp is measured to have a resistance of R ohms when it operates at a power of P Watts. What is the voltage (in volts) being applied to the lamp? Round to 2 decimal places.</span></span></div><div style="block-size: 21px; font-family: Helvetica, Arial, sans-serif; line-height: 21px; margin-block-end: 9px; margin-block-start: 2px; margin-bottom: 9px; margin-inline-end: 10px; margin-inline-start: 4px; margin-left: 4px; margin-right: 10px; margin-top: 2px; perspective-origin: 384px 10.5px; text-align: left; transform-origin: 384px 10.5px; white-space: pre-wrap; margin-left: 4px; margin-top: 2px; margin-bottom: 9px; margin-right: 10px; "><span style="block-size: auto; display: inline; margin-block-end: 0px; margin-block-start: 0px; margin-bottom: 0px; margin-inline-end: 0px; margin-inline-start: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; perspective-origin: 2px 8px; transform-origin: 2px 8px; unicode-bidi: normal; "><span style=""> </span></span></div></div></div>

Solve

Solution Stats

100 Solutions
53 Solvers

Last Solution submitted on Jan 24, 2023

Last 200 Solutions

Problem Comments

3 Comments

3 Comments

William on 17 Sep 2022

I don't get it. How are you guys getting a result of 60.15 volts for a problem whose obviously exact answer is 60.00 volts????

GarrettRandall on 17 Sep 2022

I've also been having the issue with the correct answers being slightly off from the exact answer. How are you achieving 60.15 instead of 60?

Dyuman Joshi on 17 Sep 2022

The author of the question performed rounding after a calculation and on the final value as well. That's why the answers were a bit off.

I have corrected the test suite and rescored the solutions.

Problem Recent Solvers53

Problem Tags

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Problem 55745. Voltage in a lamp

Solution Stats

Last 200 Solutions

Problem Comments

Problem Recent Solvers53

Suggested Problems

More from this Author31

Problem Tags

Community Treasure Hunt

Problem 55745. Voltage in a lamp

Solution Stats

Last 200 Solutions

Problem Comments

Problem Recent Solvers53

Suggested Problems

More from this Author31

Problem Tags

Community Treasure Hunt

Players