$CATEGORY: Science - Khan Academy/13.Magnetic Effect of electric current/13.Magnetic Effect of electric current--Domestic Electric Circuits

//Multiple Choice

Which wire carries the current to the appliance in a domestic circuit? {
    ~Neutral wire
    ~Earth wire
    =Live wire
    ~Fuse wire
}

What is the standard color of the live wire in domestic circuits? {
    ~Green
    ~Blue
    =Brown or Red
    ~Black
}

Which wire in a domestic circuit provides a return path for the current? {
    ~Live wire
    =Neutral wire
    ~Earth wire
    ~Fuse wire
}

The earth wire is mainly used for\: {
    ~Increasing current
    ~Decreasing voltage
    =Safety
    ~Power supply
}

What is the function of a fuse in a domestic circuit? {
    ~To supply current
    =To prevent short circuits
    ~To earth the appliances
    ~To increase power
}

What color is the neutral wire in a standard domestic circuit? {
    ~Brown
    =Blue
    ~Green
    ~Red
}

What is the function of the earth wire in a domestic circuit? {
    ~To carry current to appliances
    ~To prevent short circuits
    =To provide a path for leakage current to the ground
    ~To supply voltage
}

//True or False

The neutral wire is responsible for carrying current away from the appliance. {T}

The earth wire is also known as the live wire. {F}

The live wire is always connected to the ground in a domestic circuit. {F}

If there is a fault, the earth wire provides a safe path for current to flow. {T}

The color code for the neutral wire is red. {F}

//Fill in the blanks



//Numericals



//Match the following

Match the following items from Column A with their correct corresponding options from Column B\:
{
=live wire -> carries current
=standard voltage -> 220-240v
=neutral wire -> return path for current
=earth wire -> safety against shock
=fuse -> prevents overloading
}


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