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For a cell, the terminal potential difference is 3.6 V, when the circuit is open. If the potential
difference reduces to 3 V, when cell is connected to a resistance of 5 Ω, the internal resistance of
cell is
?
difference reduces to 3 V, when cell is connected to a resistance of 5 Ω, the internal resistance of
cell is
?
Most Upvoted Answer
For a cell, the terminal potential difference is 3.6 V, when the circu...
Calculation of Internal Resistance of a Cell
Given:
- Terminal potential difference of the cell = 3.6 V
- Potential difference across a resistance of 5 Ω = 3 V
To find: Internal resistance of the cell
Formula:
The formula to calculate the internal resistance of the cell is:
r = (E - V) / I
- r = internal resistance of the cell
- E = EMF of the cell (terminal potential difference when the circuit is open)
- V = potential difference across the external resistance (when the circuit is closed)
- I = current flowing through the circuit
Solution:
When the circuit is open, the EMF of the cell is equal to the terminal potential difference.
E = 3.6 V
When the circuit is closed, the potential difference across the external resistance is 3 V.
V = 3 V
We can calculate the current flowing through the circuit using Ohm's law.
V = IR
3 = I x 5
I = 0.6 A
Substituting the values in the formula:
r = (E - V) / I
r = (3.6 - 3) / 0.6
r = 1 Ω
Answer:
The internal resistance of the cell is 1 Ω.
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For a cell, the terminal potential difference is 3.6 V, when the circuit is open. If the potentialdifference reduces to 3 V, when cell is connected to a resistance of 5 Ω, the internal resistance ofcell is?
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For a cell, the terminal potential difference is 3.6 V, when the circuit is open. If the potentialdifference reduces to 3 V, when cell is connected to a resistance of 5 Ω, the internal resistance ofcell is? for Class 9 2024 is part of Class 9 preparation. The Question and answers have been prepared according to the Class 9 exam syllabus. Information about For a cell, the terminal potential difference is 3.6 V, when the circuit is open. If the potentialdifference reduces to 3 V, when cell is connected to a resistance of 5 Ω, the internal resistance ofcell is? covers all topics & solutions for Class 9 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for For a cell, the terminal potential difference is 3.6 V, when the circuit is open. If the potentialdifference reduces to 3 V, when cell is connected to a resistance of 5 Ω, the internal resistance ofcell is?.
For a cell, the terminal potential difference is 3.6 V, when the circuit is open. If the potentialdifference reduces to 3 V, when cell is connected to a resistance of 5 Ω, the internal resistance ofcell is? for Class 9 2024 is part of Class 9 preparation. The Question and answers have been prepared according to the Class 9 exam syllabus. Information about For a cell, the terminal potential difference is 3.6 V, when the circuit is open. If the potentialdifference reduces to 3 V, when cell is connected to a resistance of 5 Ω, the internal resistance ofcell is? covers all topics & solutions for Class 9 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for For a cell, the terminal potential difference is 3.6 V, when the circuit is open. If the potentialdifference reduces to 3 V, when cell is connected to a resistance of 5 Ω, the internal resistance ofcell is?.
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