Class 10 Science Chapter 11 MCQ : Electricity MCQs Quiz
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Are you ready to master one of the most high-weightage chapters in Physics? Class 10 Science Chapter 11 Electricity is not just about wires and bulbs; it’s about understanding how the modern world functions. To help you prepare effectively for your CBSE Board exams, we have curated a comprehensive Electricity MCQs Quiz in English. This quiz covers essential concepts ranging from electric current and potential difference to complex circuit problems. Whether you are struggling with Ohm’s Law or need practice with numericals on power and energy, these Class 10 Science MCQs are the perfect tool to boost your confidence and score.
Class 10 Science Chapter 11 MCQ : Electricity MCQs Quiz
Chapter 11, Electricity, introduces students to the fundamental concepts of electric current and its effects. It begins by defining electric current and potential difference, followed by Ohm’s Law, which establishes the relationship between voltage, current, and resistance. The chapter explains the factors that affect the resistance of a conductor (like length and area of cross-section) and the concept of resistivity. Students learn the difference between resistances arranged in Series and Parallel combinations and how to calculate the equivalent resistance. The final section covers the Heating Effect of Electric Current (Joule’s Law) and its practical applications in electric heaters and bulbs, concluding with the calculation of Electric Power and Energy consumed.
Conclusion
Scoring full marks in Class 10 Science Chapter 11 requires a perfect blend of conceptual clarity and numerical problem-solving skills. By attempting this Electricity Class 10 MCQs Quiz, you have tested your grasp on circuit diagrams, resistance formulas, and power calculations. Regular practice of these Class 10 Science MCQs will significantly reduce your calculation errors and improve your speed during the exam. Make sure to revisit the standard formulas and sign conventions. Keep practicing to electrify your exam results!
FAQs
- State Ohm’s Law.
Ohm’s Law states that the potential difference \(V \) across the ends of a given metallic conductor in an electric circuit is directly proportional to the current (I) flowing through it, provided its temperature remains constant. - What is the SI unit of Resistivity?
The SI unit of resistivity is Ohm meter \(\Omega m \). - Why are coils of electric toasters made of an alloy rather than a pure metal?
Alloys have higher resistivity than pure metals and do not oxidize (burn) easily at high temperatures, making them ideal for heating elements. - How does the resistance of a conductor change with its length?
The resistance of a conductor is directly proportional to its length. If the length increases, the resistance increases. - Define the unit of Electric Current.
The SI unit of electric current is the Ampere \(A \). One ampere is defined as the flow of one coulomb of charge per second. - What is the commercial unit of electrical energy?
The commercial unit of electrical energy is the Kilowatt-hour \(kWh \), commonly known as one “Unit”. - What happens to the total resistance when resistors are connected in series?
When resistors are connected in series, the total resistance \( R = R_1 + R_2 + … \) is greater than the greatest individual resistance. - Calculate the power of a lamp rated 220V and 5A.
\( Power( P ) = Voltage ( V ) \times Current ( I ) \). Therefore, \( P = 220 \times 5 = 1100 \) Watts. - What is meant by the “Heating Effect of Electric Current”?
The heating effect of electric current occurs when an electric current passes through a conductor, it generates heat because the conductor resists the flow of electrons. - What is the function of a voltmeter in a circuit?
A voltmeter is used to measure the potential difference between two points in a circuit. It is connected in parallel across the component being measured.
Test your knowledge with Class 10 Science Chapter 11 MCQ : Electricity MCQs Quiz. Master Ohm’s law, circuits, and heating effects for top CBSE exam scores!
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