(A) The potential gradient $(k)$ is defined as the potential drop per unit length of the wire.Given: $k = 10\,V/m$.The distance between points $B$ and

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(A) The potential gradient $(k)$ is defined as the potential drop per unit length of the wire.Given: $k = 10\,V/m$.The distance between points $B$ and $C$ is $\Delta l = 60\,cm - 30\,cm = 30\,cm$.Converting the distance to meters: $\Delta l = 30\,cm = 0.3\,m$.The potential difference $(V_{BC})$ is given by the formula: $V_{BC} = k \times \Delta l$.Substituting the values: $V_{BC} = 10\,V/m \times 0.3\,m = 3\,V$.Therefore,the potential difference between $B$ and $C$ is $3\,V$.

Class 12 Physics Current Electricity Potentiometer

Medium

The potential gradient along the length of a uniform wire is $10\,V/m$. $B$ and $C$ are two points at $30\,cm$ and $60\,cm$ on a meter scale fitted along the wire. The potential difference between $B$ and $C$ will be ............. $V$.

A
$3$
B
$0.4$
C
$7$
D
$4$

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Class 12

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Current Electricity

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Potentiometer

$A$ $6\,V$ battery is connected to the terminals of a $3\,m$ long uniform wire having resistance $100\,\Omega$. The difference in potential between two points on the wire separated by a distance of $50\,cm$ will be ............. $V$.

Medium

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In a potentiometer experiment, the balancing length with a cell is $560 \, cm$. When an external resistance of $10 \, \Omega$ is connected in parallel to the cell, the balancing length changes by $60 \, cm$. Find the internal resistance of the cell.

DifficultAP EAMCET 2020

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In a potentiometer arrangement,a cell of $emf$ $1.25\; V$ gives a balance point at $35.0\; cm$ length of the wire. If the cell is replaced by another cell and the balance point shifts to $63.0\; cm ,$ what is the $emf$ of the second cell in $V$?

Medium

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For the measurement of potential difference,a potentiometer is preferred in comparison to a voltmeter because:

Easy

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For a cell,the balancing length is $0.60 \, m$. For another cell having an electromotive force $(emf)$ $0.1 \, V$ less than the first one,the balancing length is $0.55 \, m$. What are the $emf$ values of the two cells?

Medium

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The potential gradient along the length of a uniform wire is $10\,V/m$. $B$ and $C$ are two points at $30\,cm$ and $60\,cm$ on a meter scale fitted along the wire. The potential difference between $B$ and $C$ will be ............. $V$.

Similar Questions

$A$ $6\,V$ battery is connected to the terminals of a $3\,m$ long uniform wire having resistance $100\,\Omega$. The difference in potential between two points on the wire separated by a distance of $50\,cm$ will be ............. $V$.

In a potentiometer experiment, the balancing length with a cell is $560 \, cm$. When an external resistance of $10 \, \Omega$ is connected in parallel to the cell, the balancing length changes by $60 \, cm$. Find the internal resistance of the cell.

In a potentiometer arrangement,a cell of $emf$ $1.25\; V$ gives a balance point at $35.0\; cm$ length of the wire. If the cell is replaced by another cell and the balance point shifts to $63.0\; cm ,$ what is the $emf$ of the second cell in $V$?

For the measurement of potential difference,a potentiometer is preferred in comparison to a voltmeter because:

For a cell,the balancing length is $0.60 \, m$. For another cell having an electromotive force $(emf)$ $0.1 \, V$ less than the first one,the balancing length is $0.55 \, m$. What are the $emf$ values of the two cells?

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