Physics Class 10 Practical 33 Important Conceptual Viva Questions with Answers (To trace the magnetic field due to a current carrying circular coil)

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Conceptual Viva Questions and Answers

Question 1: What is a magnetic field? 
Answer: A magnetic field is a region around a magnetic material or a moving electric charge within which the force of magnetism acts.

Question 2: What shape does the magnetic field take around a current-carrying circular coil? 
Answer: The magnetic field around a current-carrying circular coil forms concentric circles around the wire and resembles the pattern of a bar magnet along the axis of the coil.

Question 3: How can you trace the magnetic field of a current-carrying circular coil? 
Answer: You can trace the magnetic field using iron filings or a compass. Place the iron filings around the coil or use a compass to trace the field lines by observing the direction in which the compass needle points at various locations.

Question 4: What is the direction of the magnetic field inside the coil? 
Answer: Inside the coil, the magnetic field lines are parallel and directed from the south pole to the north pole along the axis of the coil.

Question 5: How does the magnetic field outside the coil appear? 
Answer: Outside the coil, the magnetic field lines spread out and loop around from one side of the coil to the other, forming a pattern similar to the field of a bar magnet.

Question 6: What is the right-hand thumb rule and how is it applied to determine the direction of the magnetic field? 
Answer: The right-hand thumb rule states that if you curl the fingers of your right hand in the direction of current flow through the coil, your thumb points in the direction of the magnetic field inside the coil.

Question 7: What factors affect the strength of the magnetic field produced by the circular coil? 
Answer: The strength of the magnetic field depends on the current flowing through the coil, the number of turns of the coil, and the radius of the coil.

Question 8: Why do we observe that the magnetic field at the center of the coil is stronger? 
Answer: The magnetic field at the center of the coil is stronger because the field lines from all the turns of the coil add up, creating a concentrated and uniform magnetic field.

Question 9: What happens to the magnetic field if the direction of the current in the coil is reversed? 
Answer: If the direction of the current is reversed, the direction of the magnetic field also reverses. The field lines inside the coil will point in the opposite direction.

Question 10: How does the distance from the coil affect the strength of the magnetic field? 
Answer: The strength of the magnetic field decreases with increasing distance from the coil. The field is strongest close to the coil and diminishes as you move further away.