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Name and define the Sl unit of resistance. Calculate the resistance of a resistor if the current flowing through i 200 mA, when the applied potential difference is 0.8 V.?
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Name and define the Sl unit of resistance. Calculate the resistance of...
Definition of the SI Unit of Resistance
The SI unit of resistance is the Ohm (symbol: Ω). It is defined as the resistance between two points in a conductor when a constant potential difference of one volt applied across the conductor produces a current of one ampere. In simpler terms, an Ohm measures how much a material opposes the flow of electric current.
Calculation of Resistance
To calculate the resistance of a resistor using Ohm's Law, we use the formula:
Resistance (R) = Voltage (V) / Current (I)
Where:
- Voltage (V) is the potential difference in volts (V).
- Current (I) is the flow of electric charge in amperes (A).
Given Values
- Current (I) = 200 mA = 0.2 A (since 1 A = 1000 mA)
- Voltage (V) = 0.8 V
Plugging in the Values
Now, substituting the given values into the formula:
R = V / I
R = 0.8 V / 0.2 A
Calculating Resistance
Performing the calculation:
R = 4 Ω
Conclusion
The resistance of the resistor is 4 Ohms. This means that it opposes the flow of electric current, allowing a specific amount of current to pass through when a certain voltage is applied. Understanding resistance is crucial for analyzing electrical circuits and ensuring they function correctly.
The SI unit of resistance is the Ohm (symbol: Ω). It is defined as the resistance between two points in a conductor when a constant potential difference of one volt applied across the conductor produces a current of one ampere. In simpler terms, an Ohm measures how much a material opposes the flow of electric current.
Calculation of Resistance
To calculate the resistance of a resistor using Ohm's Law, we use the formula:
Resistance (R) = Voltage (V) / Current (I)
Where:
- Voltage (V) is the potential difference in volts (V).
- Current (I) is the flow of electric charge in amperes (A).
Given Values
- Current (I) = 200 mA = 0.2 A (since 1 A = 1000 mA)
- Voltage (V) = 0.8 V
Plugging in the Values
Now, substituting the given values into the formula:
R = V / I
R = 0.8 V / 0.2 A
Calculating Resistance
Performing the calculation:
R = 4 Ω
Conclusion
The resistance of the resistor is 4 Ohms. This means that it opposes the flow of electric current, allowing a specific amount of current to pass through when a certain voltage is applied. Understanding resistance is crucial for analyzing electrical circuits and ensuring they function correctly.
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Name and define the Sl unit of resistance. Calculate the resistance of a resistor if the current flowing through i 200 mA, when the applied potential difference is 0.8 V.?
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Name and define the Sl unit of resistance. Calculate the resistance of a resistor if the current flowing through i 200 mA, when the applied potential difference is 0.8 V.? for Class 10 2024 is part of Class 10 preparation. The Question and answers have been prepared according to the Class 10 exam syllabus. Information about Name and define the Sl unit of resistance. Calculate the resistance of a resistor if the current flowing through i 200 mA, when the applied potential difference is 0.8 V.? covers all topics & solutions for Class 10 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Name and define the Sl unit of resistance. Calculate the resistance of a resistor if the current flowing through i 200 mA, when the applied potential difference is 0.8 V.?.
Name and define the Sl unit of resistance. Calculate the resistance of a resistor if the current flowing through i 200 mA, when the applied potential difference is 0.8 V.? for Class 10 2024 is part of Class 10 preparation. The Question and answers have been prepared according to the Class 10 exam syllabus. Information about Name and define the Sl unit of resistance. Calculate the resistance of a resistor if the current flowing through i 200 mA, when the applied potential difference is 0.8 V.? covers all topics & solutions for Class 10 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Name and define the Sl unit of resistance. Calculate the resistance of a resistor if the current flowing through i 200 mA, when the applied potential difference is 0.8 V.?.
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