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you can, but you will not get accurate answer as voltmeter consumes some current. so, potentiometer is used instead to measure emf

---- the potentiometer must be set to the expected emf from the cell before you put the zero detector in circuit if its set too high it will charge the cell too low it will load the cell

perhaps if you dont know the voltage of the cell before you measure it you should get a hi impedance voltmeter(electrometer) to set the potentiometer as close as you can manage before you connect the zero detector

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14y ago

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Related Questions

How do you determine the emf and internal resistance of a cell?

You can measure the emf of a cell by using a voltmeter, as this draws current from a cell. You can use the voltage, the emf, and the load resistance to determine the internal resistance of the cell.


Why cant you use voltmeter 2 calculate emf of a cell?

A voltmeter measures potential difference across a component, which may not necessarily be equal to the EMF of a cell due to internal resistance in the cell and voltage drops across other components in the circuit. To accurately measure the EMF of a cell, a potentiometer or a high-resistance voltmeter is used in conjunction with a null point method.


How do you measure EMF?

Use a voltmeter.


To measure EMF you would use a(n)?

"voltmeter"


How do you connect a voltmeter to a battery?

To measure the total emf simply connect the battery and voltmeter with the right terminals , but to measure the terminal potential difference which is less than the emf the voltmeter is connected in parallel with the battery


What does the voltmeter measure when it is across the cell?

When a voltmeter is connected across a cell, it measures the potential difference, or voltage, between the two terminals of the cell. This reading indicates the electromotive force (emf) generated by the cell, which is a measure of the cell's ability to provide electrical energy to a circuit.


How to measure the electromotive force (EMF) of a cell accurately?

To measure the electromotive force (EMF) of a cell accurately, use a voltmeter with high precision and connect it to the terminals of the cell. Ensure the cell is not connected to any external circuit during the measurement to prevent errors. Take multiple readings and calculate the average to minimize inaccuracies.


Which is preferred for measuring emf of a cell avoltmeter or potentiometer?

A voltmeter is used to measure voltage. A potentiometer is used to vary the amount of resistance in a circuit - it has nothing to do with measuring.


What is voltmeter and thermometer?

Voltmeter is a device to measure EMF and potential difference in terms of volts Thermometer is a device to measure the temperature in terms of K(kelvin),C(Celsius) F(Fahrenheit)


Why do you measure emf with a potentiometer not with voltmeter?

EMF (E''electromotive Force'') is another term for Volts, hence the E in electronic formulas and EMF is measured with a volt meter. A potentiometer is not a meter at all, it is a variable resistor


Why emf of battery driving potentiometer is greater than emf of the cell to be measured?

Bcoz the emf which is to be measured is less than emf of driving cell....


How can you say that ac emf is induced in the coil?

When we place a current carrying conductor in a magnetic field emf is induced in a coil. we can knoe it by connecting voltmeter.