How does the use of a fuse wire protect electrical appliances?
(N/A) fuse wire is made of a material with a low melting point.
When the current flowing through the circuit exceeds the safe limit (due to overloading or short-circuiting),the heat generated $(H = I^2Rt)$ causes the temperature of the fuse wire to rise rapidly.
Once the temperature reaches the melting point of the wire,it melts and breaks the circuit.
This disconnection stops the flow of current,thereby preventing damage to the electrical appliances.
When the current flowing through the circuit exceeds the safe limit (due to overloading or short-circuiting),the heat generated $(H = I^2Rt)$ causes the temperature of the fuse wire to rise rapidly.
Once the temperature reaches the melting point of the wire,it melts and breaks the circuit.
This disconnection stops the flow of current,thereby preventing damage to the electrical appliances.
Explore More
Similar Questions
The rating of an electric heater is $1100 \ W, 220 \ V$. Calculate its resistance when it operates at $220 \ V$. Also,calculate the energy consumed in $kWh$ in the month of November,if the heater is used daily for four hours at the rated voltage.
Medium
View Solution$(a)$ Define the term 'volt'.
$(b)$ State the relation between work,charge,and potential difference for an electric circuit. Calculate the potential difference between the two terminals of a battery,if $100 \ J$ of work is required to transfer $20 \ C$ of charge from one terminal of the battery to the other.
$(b)$ State the relation between work,charge,and potential difference for an electric circuit. Calculate the potential difference between the two terminals of a battery,if $100 \ J$ of work is required to transfer $20 \ C$ of charge from one terminal of the battery to the other.
Medium
View SolutionThe electric potential of a positively charged body is positive,and the electric potential of a negatively charged body is negative.
Easy
View SolutionWhat is the device (meter) used to measure electric potential difference called?
Easy
View Solution$A$ cylinder of a material is $10\, cm$ long and has a cross-section of $2\, cm^{2}$. If its resistance along the length is $20\, \Omega$,what will be its resistivity in number and units?
Easy
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