88. An electric kettle has two heating elements. One brings it toboil 10 min and the other in 15 min. If two heating filamentsare connected in parallel, the water in kettle will boil in(a) 6 min(c) 25 min (d) 5 min(b) 8 min

Here, we calculate the time for bioling water in kettle as given follow;

An electric kettle has two heating elements. One brings it tc poil 10 min and the other in 15 min. If two heating filaments re connected in parallel, the water in kettle will boil in 16 min (h) & min (c) 25 min (d) 5 min

An electric kettle has two heating elements. One brings it tc poil 10 min and the other in 15 min. If two heating filaments re connected in parallel, the water in kettle will boil in 16 min (h) & min (c) 25 min (d) 5 min

Physics for Scientists and Engineers, Technology Update (No access codes included)

9th Edition

ISBN:9781305116399

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter20: The First Law Of Thermodynamics

Section: Chapter Questions

Problem 20.15OQ

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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

88. An electric kettle has two heating elements. One brings it to
boil 10 min and the other in 15 min. If two heating filaments
are connected in parallel, the water in kettle will boil in
(a) 6 min
(c) 25 min (d) 5 min
(b) 8 min

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