[DOC] [TLE] Chapter 7 Sections 2-3 [PAR] A. The flow of charges through a wire or conductor is called electric current. 1. 
Current is usually ... A dry cell battery produces a voltage difference between its 
zinc container and its ... Electric fusecontains a small piece of metal that melts if 
the current becomes too high, opening the circuit and stopping the flow of current 
b. [DOC] [TLE] Breakers and Ground Wires - HyperPhysics [PAR] Fuses and breakers limit the current which can flow in a circuit. The metal 
filament in the fuse melts and breaks the connection, whereas in a ... A small 
electromagnet consisting of wire loops around a piece of iron will pull ... If the 
case is grounded, a high current should flow in the appliance ground wire and 
trip the breaker. [DOC] [TLE] Controlling Current in Electric Circuits ( Read ) | Physics | CK-12 ... [PAR] Jun 26, 2013 ... The amount of electric current passing through a circuit depends on the .... The 
fuse wire is placed in the glass housing and a fuse mount to insulate the melting 
wire from its surroundings. ... If the current flow gets too high, the fuse will melt. ... 
An MOV has three parts: a piece of metal oxide material in the... [DOC] [TLE] BBC - GCSE Bitesize: Fuses and circuit breakers [PAR] A secondary school revision resource for Edexcel GCSE Science about electricity 
in the real world and mains electricity. [DOC] [TLE] Electrical Safety...Electrical Safety - Occupational Safety and Health ... [PAR] The other end of this grounding wire is connected to the metal .... depends on its 
electrical resistance, or opposition to current flow, measured in ... Electricians 
install grounded circuits. .... rated, but if too much current flows through an 
extension cord whose wires .... able to let go of an energized tool or piece of 
equipment. [DOC] [TLE] Fuses and Electric Shock [PAR] If the circuit got overloaded, the wire would melt somewhere inside the hole ... 
One now threaded a fresh piece of "fuse wire" through the hole, wound its ... if the 
current in the circuit is too large, the wire heats up and expands, its grip ... the 
metal box where power enters the house and where all circuit breakers are 
located. [DOC] [TLE] How do surge protectors and fuses work? - Explain that Stuff [PAR] Mar 6, 2016 ... Another helpful thing you can do is install surge protectors. ... than normal voltage 
appears, and produces too much electric current, the excess current ... If a surge 
current flows in down the hot/live wire, any excess current is safely ... When it 
melts, it breaks the circuit it's fitted to and stops the current flowing. [DOC] [TLE] Fuse (electrical) - Wikipedia [PAR] In electronics and electrical engineering, a fuse is a type of low resistance 
resistor that acts as a sacrificial device to provide overcurrent protection, of either 
the load or source circuit. Its essential component is a metal wire or strip that 
melts when too much current flows through it, interrupting the circuit ... If too high 
a current flows, the element rises to a higher temperature and... [DOC] [TLE] Short Circuit: Physics & Electricity Science Activity | Exploratorium ... [PAR] Current flowing through a wire heats the wire. The length of a wire affects its 
resistance, which determines how much current flows in the wire ... Eventually, 
when you make the steel wire short enough, so much current flows that it melts 
the wire. ... If a short circuit occursor even if too many appliances get hooked up 
to one... [DOC] [TLE] How Circuit Breakers Work | The Family Handyman [PAR] Learn how circuit breakers work and how to calculate the safe electrical ... Luckily
, the circuit breaker senses the excess current and trips to stop the flow of ... 
shows how circuit breakers can stop working when the load is too high. .... 
Anytime you install a large electrical appliancewhether it's 120 or 240 volts
install it on... [DOC] [TLE] voltage - Why does fuse blow up sometimes? - Electrical ... [PAR] Jan 23, 2012 ... Yes, sometimes I noticed the light bulb get fused too

Question: It's a piece of metal put in an electrical circuit to melt if current flow is too high
Answer: a fuse