Magnetic Important Questions

 Conceptual Questions

1. What is the magnetic field, and how is it represented?

2. Describe the properties of magnetic field lines.

3. Why don't two magnetic field lines intersect each other?

4. Explain the Right-Hand Thumb Rule with an example.

5. What is a solenoid, and how does it produce a magnetic field similar to a bar magnet?

6. What is the role of an electromagnet? Give examples of its applications.

7. Explain Fleming's Left-Hand Rule and its significance.

Application-Based Questions

1. Draw and explain the pattern of magnetic field lines around a straight current-carrying conductor and a circular loop.

2. Describe how an electric fuse works and its importance in household circuits.

3. Explain the working of a domestic electric circuit with the help of a diagram

4. How does increasing the current affect the magnetic field in a conductor?

 Numerical and Objective Questions

1. Which of the following describes the magnetic field near a straight conductor:

   - a) Straight lines perpendicular to the wire

   - b) Straight lines parallel to the wire

   - c) Radial lines from the wire

   - d) Concentric circles around the wire

2. An electric oven of 2 kW is operated in a 220 V circuit with a 5 A rating. Will it work? Explain why.

3. If an electron moves in a magnetic field at right angles, in which direction is the force acting on it?

Short-Answer Questions

1. What is the function of an earth wire, and why is earthing necessary in electrical appliances?

2. Explain the magnetic effect of electric current with the help of Oersted’s experiment.

3.When does an electric short circuit occur, and how can it be prevented?