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Physics
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Class 12
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The Potentiometer-Internal resistance of a cell
The Potentiometer-Internal resistance of a cell
Theory
Theory
Procedure
Animation
Simulator
Viva Voce
Resources
Feedback
1)
The resistance offered by the electrolyte between the two electrodes of the cell is:
The internal resistance of the cell
Potential difference of the cell
E.M.F of the cell
Sensitivity of the cell
2)
What is the shape of graph between internal resistance in X axis and external resistance in Y axis?
Parabola
Straight line
Curve
Hyperbola
3)
Which material is suitable for potentiometer wire?
Manganin
constantan
Copper
Manganin and constantan
4)
Which one of the following is a scalar quantity?
current
Voltage
Potential difference
Time
5)
What happens to the internal resistance of a cell when we increase the external resistance?
Increases
Decreases
First decrease then increase
First increase then decrease
6)
What is the device used to measure the potential difference?
Voltmeter
Metre bridge
Potentiometer
Galvanometer
7)
What is potential gradient?
Fall of potential per unit voltage
Fall of current per unit voltage
Fall of potential per unit length
Fall of current per unit length
8)
Why is a potentiometer preferred to a voltmeter to measure voltage in a circuit?
Range of voltmeter is small compared to a potentiometer.
Potentiometer is cheaper.
No current is drawn by potentiometer during measurement.
Potentiometer is handy compared to a voltmeter to measure voltage in a circuit.
9)
Which of the following is an example for secondary cell?
Dry cell
Lead accumulator
Daniel cell
Leclanche cell
10)
What is an example for a primary cell?
All of these
Daniel cell
Leclanche cell
Dry cell
Cite this Simulator:
amrita.olabs.edu.in,. (2013). The Potentiometer-Internal resistance of a cell. Retrieved 21 May 2022, from amrita.olabs.edu.in/?sub=1&brch=6&sim=147&cnt=310