Inter Physics Revision | Baamboozle - Baamboozle

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In Fleming's left-hand rule, middle finger is used to find _________________

direction of current

a magnet that keeps its magnetic properties is called _______________

permanent magnet

the phenomenon of inducing current by a changing magnetic field is known as

electromagnetic induction

what is the use of right hand rule in a solenoid?

to predict the direction of the north pole

the force that makes the wire move is called ________________

motor effect

name three metals that are attracted to magnet

steel, manganese, iron, nickel, cobalt

a region where magnetic force is felt

magnetic field

direction of magnetic field

north to south

name two ways of demagnetizing magnet

1. hitting and 2. heating the magnet

name three metals that are not attracted to magnet

aluminum, copper, gold

name the direction of current and magnetic field (use right-hand rule)

1. current to the right, 2. magnetic field out of the paper

name the use of Fleming's left-hand rule

to show the direction of force, current, and magnetic field

in Fleming's left-hand rule, thumb is used to find ______________

direction of force (motion) of the conductor

Name three ways to increase the induced current in the set - up shown.

1. move the magnet faster, 2. use a stronger magnet, 3. using more turns of wire in the coil

give the formula for cost of energy used

cost = energy used X cost/kWh