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Science

Ohm’s law

In Class 10 Science, the topic Ohm’s law introduces the relationship between potential difference, current, and resistance in an electric circuit. Students learn the formula V = IR, understand how voltage and resistance affect current, interpret the straight-line voltage–current graph for an ohmic conductor, and use the law to calculate unknown electrical quantities. The topic also builds a foundation for analysing simple circuits in the chapter Electricity.

Easy · Level 1 · 1 questions

Practice questions

01Ohm's law gives the relation between which quantities?

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Answer and explanation

Correct answer: A. Voltage, electric current and resistance

Ohm’s law relates potential difference (V), electric current (I), and resistance (R) of a conductor at constant temperature: \(V = IR\). Hence, option A is correct. Option B belongs to Newton’s second law, while power, energy, and time are related by \(P = E/t\). Exam tip: Remember V, I, and R as voltage, current, and resistance in Ohm’s law.

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Ohm’s law

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01Ohm's law gives the relation between which quantities?ओम का नियम किन राशियों के बीच संबंध बताता है?

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01Ohm's law gives the relation between which quantities?