$CATEGORY: Science - Khan Academy/13.Magnetic Effect of electric current/13.Magnetic Effect of electric current--Revision: Magnetic effects of current

//Multiple Choice

Who discovered the magnetic effect of electric current? {
    ~Faraday
    =Oersted
    ~Newton
    ~Tesla
}

The Right-Hand Thumb Rule helps to determine\: {
    ~Direction of current
    =Direction of magnetic field
    ~Magnetic force magnitude
    ~Electric potential
}

In a straight conductor, if current flows upwards, the magnetic field circles the conductor in which direction? {
    ~Clockwise
    =Counter-clockwise
    ~Left to right
    ~Upwards
}

Which device converts electrical energy into mechanical energy? {
    ~Generator
    =Motor
    ~Battery
    ~Transformer
}

Which rule is used to find the direction of current in a generator? {
    ~Right-hand thumb rule
    =Fleming's right-hand rule
    ~Fleming’s left-hand rule
    ~Oersted's law
}

//True or False

Oersted discovered the magnetic effect of electric current. {T}

In a current-carrying conductor, the magnetic field lines are parallel to the direction of current flow. {F}

Fleming’s left-hand rule is used to determine the direction of force on a conductor in a magnetic field. {T}

A generator converts mechanical energy into electrical energy. {T}

The Right-Hand Thumb Rule is used to determine the direction of current flow. {F}

//Fill in the blanks



//Numericals



//Match the following

Match the following items from Column A with their correct corresponding options from Column B\:
{
=Oersted -> Discovered magnetic effect of current
=Generator -> Mechanical to electrical conversion
=Right-Hand Thumb Rule -> Direction of magnetic field
=Motor -> Converts electrical to mechanical
=Fleming's Right-Hand Rule -> Direction of induced current
}


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