Class 10 Science Chapter 12: Magnetic Effects of Electric Current — 3 Marker Important Questions
Practice Magnetic Effects of Electric Current 3 Marker important questions and mock-test sets for CBSE revision.
Topic-wise important and practice questions
Review question distribution across chapter topics for 3 Mark questions.
| Topic | 3 Mark |
|---|---|
| Field-Line Density and Magnetic Field Strength | 3 |
| Force on a Current-Carrying Conductor in a Magnetic Field | 3 |
| Domestic Supply: Live and Neutral Wires | 3 |
| Effect of Number of Turns in a Circular Coil | 0 |
| Field Around a Straight Current-Carrying Conductor | 0 |
| Magnetic Field and Compass Needle | 3 |
| Overloading of Domestic Circuits | 2 |
| Short-Circuiting in Domestic Circuits | 2 |
| Effect of Distance on Straight-Wire Magnetic Field | 2 |
| Non-Intersection of Magnetic Field Lines | 1 |
| Parallel Connection of Domestic Appliances | 3 |
| Domestic Circuit Ratings: 5 A and 15 A | 2 |
| Effect of Current on Straight-Wire Magnetic Field | 2 |
| Magnetic Field of a Circular Current-Carrying Loop | 3 |
| Magnetism in Medicine and MRI Context | 3 |
| Earth Wire and Safety of Metallic Appliances | 2 |
| Fleming's Left-Hand Rule | 1 |
| Magnetic Field Lines and Their Direction | 1 |
| Maximum Magnetic Force at Right Angles | 2 |
| Reversal of Current and Magnetic Field Direction | 3 |
| Solenoid and Its Magnetic Field | 2 |
| Electromagnet Using a Soft-Iron Core | 1 |
| Fuse and Protection Against Excess Current | 1 |
| Motion of Charged Particles in a Magnetic Field | 0 |
| Oersted Experiment and Magnetic Effect of Current | 1 |
| Reversal of Current or Field and Force Direction | 2 |
| Right-Hand Thumb Rule | 2 |
3 Marker Preparation & Exam Strategy
3 Mark questions evaluate conceptual depth, multi-step problem solving, diagram explanations, and cause-effect reasoning.
- Organize responses into three well-defined points or three logical reasoning steps.
- Support answers with neat labeled diagrams, chemical equations, or relevant citations where applicable.
- State intermediate values and units clearly in multi-step derivations or numerical problems.
Sample Questions
Q1. Describe the principle, working, or main process in Magnetic Effects of Electric Current with the help of a labeled diagram.
Model Answer: Provide the governing principle, concise step-by-step description, and neat schematic representation with key labels.
Q2. Derive or explain the relationship between quantities involved in Magnetic Effects of Electric Current.
Model Answer: State initial assumptions, apply governing laws, and show logical progression to the final expression.
Q3. Analyze a scenario or numerical problem based on Magnetic Effects of Electric Current and calculate the required outcome.
Model Answer: List given parameters, apply the governing relationship, and state the final result with appropriate units.