State Fleming's Left-Hand Rule and Fleming's Right-Hand Rule.

Fleming's Left-Hand Rule (for motors): Stretch the forefinger, middle finger, and thumb of the left hand mutually perpendicular. Forefinger = direction of magnetic field; Middle finger = direction of current; Thumb = direction of motion/force. Used for electric motors. Fleming's Right-Hand Rule (for generators): Same orientation of right hand. Forefinger = magnetic field; Thumb = direction of conductor's motion; Middle finger = direction of induced current. Used for electric generators/dynamos.

What is the difference between an electric motor and a generator?

Electric motor: converts electrical energy into mechanical (kinetic) energy. It uses the principle that a current-carrying coil in a magnetic field experiences a force causing rotation. Used in fans, pumps, electric vehicles. Electric generator: converts mechanical energy into electrical energy. It uses electromagnetic induction — a coil rotating in a magnetic field produces an induced EMF. Used in power stations. They are essentially the reverse of each other in function.

What is the role of a fuse in electric circuits?

A fuse is a safety device consisting of a thin wire with a low melting point (often tin-lead alloy). It is connected in series in the live wire. If current exceeds the safe limit (due to overloading or short circuit), the fuse wire heats up rapidly and melts, breaking the circuit and stopping current flow — protecting appliances and wiring from damage or fire. The fuse rating (in Amperes) must match the circuit's normal operating current.

Electromagnetic Induction

Magnetic Effects of Electric Current • Class 10 Science • NCERT • CBSE

A current-carrying conductor creates a magnetic field around it. Fleming's Left-Hand Rule gives the direction of force on a current-carrying conductor in a magnetic field (used in electric motor). Fleming's Right-Hand Rule gives the direction of induced current (generator/electromagnetic induction).

Frequently Asked Questions

State Fleming's Left-Hand Rule and Fleming's Right-Hand Rule.: Fleming's Left-Hand Rule (for motors): Stretch the forefinger, middle finger, and thumb of the left hand mutually perpendicular. Forefinger = direction of magnetic field; Middle finger = direction of current; Thumb = direction of motion/force. Used for electric motors. Fleming's Right-Hand Rule (for generators): Same orientation of right hand. Forefinger = magnetic field; Thumb = direction of conductor's motion; Middle finger = direction of induced current. Used for electric generators/dynamos.
What is the difference between an electric motor and a generator?: Electric motor: converts electrical energy into mechanical (kinetic) energy. It uses the principle that a current-carrying coil in a magnetic field experiences a force causing rotation. Used in fans, pumps, electric vehicles. Electric generator: converts mechanical energy into electrical energy. It uses electromagnetic induction — a coil rotating in a magnetic field produces an induced EMF. Used in power stations. They are essentially the reverse of each other in function.
What is the role of a fuse in electric circuits?: A fuse is a safety device consisting of a thin wire with a low melting point (often tin-lead alloy). It is connected in series in the live wire. If current exceeds the safe limit (due to overloading or short circuit), the fuse wire heats up rapidly and melts, breaking the circuit and stopping current flow — protecting appliances and wiring from damage or fire. The fuse rating (in Amperes) must match the circuit's normal operating current.

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