FAQ

Does internal resistance of a cell depends on the current drawn from the cell?

Does internal resistance of a cell depends on the current drawn from the cell?

Explanation: Internal resistance of a cell doesnt depend on the current drawn from it. Internal resistance of a cell doesnt depend on the current drawn from it.

What is meant by internal resistance of a cell on what factors does the resistance depends and how?

Greater the conductivity of the electrolyte, lesser is the internal resistance of the cell. That is, internal resistance depends on the nature of the electrolyte. The internal resistance of a cell is inversely proportional to the common area of the electrodes dipping in the electrolyte.

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What is the factor that internal resistance does not depend on?

So, that leaves temperature of the electrolyte out, which is the answer.

Which of the following factors does influence the internal resistance of a battery?

A battery’s internal resistance is affected by many factors including size, age, current, and chemistry. The lower the internal resistance, the easier it is for the battery to perform.

Does internal resistance change with current?

As current decreasesd, voltage across the internal resistance of the cell, Ir, decreased (using V=IR), because internal resistance should remain constant. Therefore voltage across the terminals increased (as less is wasted across the internal resistor).

What is the internal resistance of a cell?

Internal resistance refers to the opposition to the flow of current offered by the cells and batteries themselves resulting in the generation of heat. Internal resistance is measured in Ohms. The relationship between internal resistance (r) and emf (e) of cell s given by. e = I (r + R)

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What is internal resistance of cell?

Which are the two factors that influence resistance?

There are several factors that affect the resistance of a conductor;

  • material, eg copper, has lower resistance than steel.
  • length – longer wires have greater resistance.
  • thickness – smaller diameter wires have greater resistance.
  • temperature – heating a wire increases its resistance.

How is the internal resistance be affected if the distance is increased?

The internal resistance of a battery cell increases with an increase in distance between two electrodes. Because of this change in electrolyte concentration the battery resistance increases during discharge.

Why there is internal resistance in a cell?

When there is current present in the device or the electrical circuit and there’s a voltage drop in source voltage or source battery is internal resistance. It is caused due to electrolytic material in batteries or other voltage sources.

What is an internal resistance of a cell?

Why there is internal resistance of a cell?

What factors affect the internal resistance of a cell?

Factors Affecting Internal Resistance of a Cell Distance between Electrodes Area of Electrodes Inversely Proportional Temperature of Electrolytes Inversely Proportional Conc. of Electrolyte Inversely Proportional FLOWCHART CONCLUSION Directly Proportional 15.

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What is the internal resistance of an electrolyte?

The internal resistance of a cell is inversely proportional to the common area of the electrodes dipping in the electrolyte. The internal resistance of a cell depends on the nature of the electrodes.

How to study variation of internal resistance with area of electrodes?

To study variation of internal resistance with area of electrodes 14. Keeping all other factors constant, increase the area of electrodes in the electrolyte by dipping them into the electrolyte at different depths for each observation. 15.

What are the tools used in the study of internal resistance?

7. PRACTICAL ANALYSIS OBJECTIVE To study the various factors on which the internal resistance of a cell depends. APPARATUS A potentiometer, a battery (or battery eliminator), two one way keys, a rheostat, a galvanometer, a resistance box, an ammeter, a cell (Leclanche cell), a jockey, a setsquare, connecting wires and sand paper.