1.Why is copper wire more preferable than silver wire? 2.Why should the melting point of a fuse wire be low? 3.”The resistivity of a wire 1 ohm meter.”Explain. 4.What is the resistivity of(a)copper(b)nichrome? 5.What will happen if nichrome wire is used in transmission lines? Incoming search terms:current electricity numericalsdifficult questions on current and electricitynumericals on [...]
QUESTION: In a household electric circuit different appliances are connected in parallel to one another. Give two reasons.
An electrician puts a fuse of rating 5A in that part of domestic
- Electric Fuse is a Safety device
- It works on the principle of Joule’s law of heating
- It consists of a fuse wire made of an alloy of tin and lead, which melts and breaks