Class 10 Science Chapter 12 MCQ : Magnetic Effects of Electric Current MCQs Quiz
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Are you fascinated by how electric motors turn electricity into motion or how massive generators light up cities? Class 10 Science Chapter 12 Magnetic Effects of Electric Current is a fascinating exploration of the invisible link between electricity and magnetism. To help you master concepts like magnetic fields, electromagnets, and the working of electrical gadgets, we have designed a comprehensive Magnetic Effects of Electric Current MCQs Quiz in English. This quiz covers everything from Oersted’s experiment to the intricate rules governing motors and generators. Practicing these Class 10 Science MCQs is the smartest way to prepare for your CBSE Board exams and ensure you score full marks in Physics.
Class 10 Science Chapter 12 MCQ : Magnetic Effects of Electric Current MCQs Quiz
Chapter 12, Magnetic Effects of Electric Current, explores the relationship between electricity and magnetism. It begins with Oersted’s experiment, which established that a current-carrying conductor produces a magnetic field, and explains the properties of magnetic field lines. The chapter covers the Right-Hand Thumb Rule to determine the direction of the magnetic field. It further explains the force exerted on a current-carrying conductor in a magnetic field, leading to the working principle of an Electric Motor (Fleming’s Left-Hand Rule). The latter half focuses on Electromagnetic Induction and the working of an Electric Generator (Fleming’s Right-Hand Rule). The chapter concludes with essential safety knowledge regarding Domestic Electric Circuits, including earthing, fuses, and overloading to prevent hazards.
Conclusion
Mastering Class 10 Science Chapter 12 is crucial for understanding how modern technology operates. By attempting this Magnetic Effects of Electric Current Class 10 MCQs Quiz, you have tested your ability to recall Fleming’s rules and distinguish between AC and DC generators. Regular practice of these Class 10 Science Chapter 12 Quiz questions will help you visualize magnetic field patterns and understand the principles of electromagnetism effectively. Make sure to review the diagrams of electric motors and generators to cement your understanding. Keep practicing to ace your Physics exam!
FAQs
- Who discovered the magnetic effect of electric current?
Hans Christian Oersted discovered the magnetic effect of electric current in 1820. - State Fleming’s Left-Hand Rule.
Fleming’s Left-Hand Rule states that if you stretch your thumb, forefinger, and middle finger of the left hand such that they are mutually perpendicular, the thumb points in the direction of force (motion) on the conductor. - What is the function of a split ring in an electric motor?
The split ring acts as a commutator in an electric motor. Its function is to reverse the direction of the current in the coil every half rotation, ensuring the continuous rotation of the coil. - Define Electromagnetic Induction.
Electromagnetic Induction is the process of generating an electric current in a conductor by changing the magnetic field around it. - What is the difference between an AC generator and a DC generator?
An AC generator generates an alternating current (which changes direction), while a DC generator generates a direct current (flows in one direction) by using a split ring commutator. - What is the use of an Earth wire in domestic circuits?
The earth wire is used as a safety measure. It maintains the potential of the appliances at the earth level and prevents severe electric shocks to the user if the appliance has a current leakage. - What is a Solenoid?
A solenoid is a coil of many circular turns of insulated copper wire wrapped closely in the shape of a cylinder. - State the Right-Hand Thumb Rule.
The Right-Hand Thumb Rule states that if you hold a current-carrying straight conductor in your right hand such that the thumb points towards the direction of the current, then the curled fingers show the direction of the magnetic field lines. - What happens to the force on a conductor if the direction of the current is reversed?
If the direction of the current is reversed, the direction of the force acting on the conductor also reverses. - What is short-circuiting?
Short-circuiting occurs when the live wire and the neutral wire come into direct contact, causing a large current to flow through the circuit, potentially leading to overheating and fires.
Take our Class 10 Science Chapter 12 MCQ : Magnetic Effects of Electric Current MCQs Quiz. Master electromagnetism, motors, and generators for top CBSE scores!
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