Electromagnet F5

What is induced current

• Current formed by the dry cell

• Current flow in straight line or solenoid and causes the deflection on galvanometer

• Cutting of magnetic flux

All these Law involved in induced current except

• Fleming left hand rules

• Fleming right hand rule

• Faradays law

• Lenz law

Faradays law states that

• Direction of induces emf determined by this rule

• Induced current always flow the opposed magnetic field

• The magnitude of induced directly proportional to the rate of change magnetic flux

the coil at vertical position will keep move due to

• Impulse

• Inertia

• Momentum

Size of induced emf can be increased by

• Rotate the coil slowly

• Decrease the number of turns

• Using strong magnet

Fleming left hand rules use for

• Predict direction of induced current

• Predict direction of the force

• Determine the rotation of current

Function of commutator

• Change the direction of the current flow

• Change the magnetic poles

• Allow current to flow in one direction

Factors affect magnitude of the force on current carrying conductor

• size of the current

• Shape of conductor

• Colour of conductor wire

For right hand grip rule, thumb will pointing of the

• Pole

• Force

• Direction of current