$CATEGORY: Science - Khan Academy/12.Electricity/12.Electricity--Electric potential and potential difference

//Multiple Choice

Potential difference between two points is defined as\: {
    ~Work done per unit current
    =Work done per unit charge
    ~Power per unit charge
    ~Charge per unit time
}

The SI unit of potential difference is\: {
    ~Joule
    ~Ampere
    =Volt
    ~Ohm
}

If 20 joules of work is done in moving 4 coulombs of charge between two points, the potential difference is\: {
    =5 volts
    ~10 volts
    ~4 volts
    ~8 volts
}

What instrument is used to measure potential difference? {
    ~Ammeter
    ~Galvanometer
    =Voltmeter
    ~Rheostat
}

Potential difference causes ____ to flow in a conductor. {
    ~Heat
    ~Resistance
    =Charge
    ~Light
}

//True or False


The unit of potential difference is joule per coulomb. {T}

A voltmeter is always connected in series with the circuit. {F}

The potential difference is the driving force behind the flow of current in a circuit. {T}

If no potential difference is applied, current will still flow in a circuit. {F}

The work done in moving a charge between two points with a potential difference of 1 volt is 1 joule. {T}

//Fill in the blanks



//Numericals



//Match the following

Match the following items from Column A with their correct corresponding options from Column B\:
{
=Potential difference -> SI unit is volt
=Voltmeter -> Measures potential difference
=1 Volt -> 1J/C
=Formula for potential difference -> V\=W/Q
}


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