Why should copper tubes be given a higher number of coils in a solar water heater?
- ATo increase the surface area for heat absorption.
- BTo decrease the flow rate of water.
- CTo reduce the cost of the heater.
- DTo make the heater look more attractive.
Explore More
Similar Questions
Mention any two differences between the two common designs of solar cooker.
Easy
View Solution$(a)$ Describe the structure of a windmill.
$(b)$ Give one example to illustrate that energy from a windmill was used in the past to do mechanical work.
$(b)$ Give one example to illustrate that energy from a windmill was used in the past to do mechanical work.
Medium
View SolutionWhat is a solar cell? What is its other name?
Easy
View SolutionWhich type of process is currently used in nuclear electricity generation?
Easy
View Solution$(i)$ Name the four gases commonly present in biogas.
$(ii)$ List two advantages of using biogas over fossil fuels.
$(ii)$ List two advantages of using biogas over fossil fuels.
Medium
View SolutionVedclass Products
For Students
Vedclass Test Series
Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.
Start Free TrialFor Teachers
Exam Paper Generator
Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.
Try FreeFor Institutes
Online Exam Module
Live online exams with unlimited students, 360° analytics & white-label branding.
See Demo