Question

Match List-I with List-II.

List-I: Rule	List-II: Statement
(A) Ampere Swimming Rule	(I) Direction of induced current
(B) Fleming’s Left Hand Rule	(II) Direction of magnetic field lines due to current
(C) Fleming’s Right Hand Rule in straight conductor	(III) Direction of deflection of magnetic needle
(D) Right Hand Thumb Rule	(IV) Direction of force on a current-carrying conductor

• A. (A)-(I), (B)-(II), (C)-(III), (D)-(IV)
• B. (A)-(II), (B)-(III), (C)-(IV), (D)-(I)
• C. (A)-(III), (B)-(IV), (C)-(I), (D)-(II)
• D. (A)-(IV), (B)-(I), (C)-(II), (D)-(III)

Answer 1

The Correct Option is C

The accurate matching of physics rules with their statements is:

List-I: Rule	List-II: Statement	Correct Match
(A) Ampere Swimming Rule	(III) Direction of deflection of magnetic needle	A → III
(B) Fleming's Left Hand Rule	(IV) Direction of force on a current-carrying conductor	B → IV
(C) Fleming's Right Hand Rule	(I) Direction of induced current	C → I
(D) Right Hand Thumb Rule	(II) Direction of magnetic field lines due to current	D → II

Detailed Explanation:

• Ampere Swimming Rule (A → III):

This rule describes the deflection of a magnetic needle near a current-carrying conductor. If a swimmer swims in the direction of current, the north pole of a magnetic needle will deflect toward their left hand.

• Fleming's Left Hand Rule (B → IV):

Used to determine the direction of force on a current-carrying conductor placed in a magnetic field (Thumb = Thrust/Force, Forefinger = Magnetic Field, Middle finger = Current direction).

• Fleming's Right Hand Rule (C → I):

Used to find the direction of induced current when a conductor moves through a magnetic field (Thumb = Motion, Forefinger = Magnetic Field, Middle finger = Induced Current).

• Right Hand Thumb Rule (D → II):

Also called Maxwell's corkscrew rule, determines the direction of magnetic field lines around a current-carrying conductor (thumb points in current direction, curled fingers show field direction).

Final Correct Matching:

• A → III (Ampere Swimming Rule for magnetic needle deflection)
• B → IV (Fleming's Left Hand Rule for force direction)
• C → I (Fleming's Right Hand Rule for induced current)
• D → II (Right Hand Thumb Rule for magnetic field direction)

Answer 2

- Ampere Swimming Rule (A) → (III): Direction of deflection of magnetic needle due to current.
- Fleming’s Left Hand Rule (B) → (IV): Direction of force on a current carrying conductor due to magnetic field.
- Fleming’s Right Hand Rule (C) → (I): Direction of induced current in a conductor.
- Right Hand Thumb Rule (D) → (II): Direction of magnetic field lines due to current through circular coil.
Thus, the correct match is Option (3)