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Ohm's Law Video Lecture - Class 10

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FAQs on Ohm's Law Video Lecture - Class 10

1. What is Ohm's Law?
Ans. Ohm's Law states that the current flowing through a conductor is directly proportional to the voltage across it, provided the temperature and other physical conditions remain constant. Mathematically, it is represented as I = V/R, where I is the current in amperes, V is the voltage in volts, and R is the resistance in ohms.
2. How can Ohm's Law be applied to calculate current?
Ans. To calculate the current using Ohm's Law, we need to know the voltage across the conductor and the resistance of the conductor. By rearranging the equation I = V/R, we can calculate the current (I) by dividing the voltage (V) by the resistance (R).
3. What is the significance of Ohm's Law in electrical circuits?
Ans. Ohm's Law is of great significance in electrical circuits as it helps in determining the behavior of various components and the relationships between voltage, current, and resistance. It allows us to calculate the current flowing through a circuit, the voltage drop across a component, or the resistance required to achieve a desired current.
4. Can Ohm's Law be applied to both AC and DC circuits?
Ans. Yes, Ohm's Law can be applied to both AC (alternating current) and DC (direct current) circuits. However, in AC circuits, the resistance is replaced by impedance, which takes into account both resistance and reactance due to inductance or capacitance.
5. How can Ohm's Law be used to determine the resistance of a component?
Ans. Ohm's Law can be used to determine the resistance of a component by rearranging the equation R = V/I. By measuring the voltage across the component and the current flowing through it, we can calculate the resistance. This is particularly useful when the resistance value of a component is not known or needs to be verified.
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