charged

magnetised

hot

free of cracks

mantle

outer core

inner core

crust

A plastic scale

A copper rod

An inflated balloon

A woolen cloth

Equal and similar charges

Equal and opposite charges

Unequal and similar charges

Unequal and opposite charges

gum

amber

lac

fructose

can repel or attract each other depending on the quantity of charge

can repel or attract each other depending on conditions

always repel each other

always attract each other

A loses its charge

B acquires positive charge

B acquire no charge

B acquires negative charge

Focus

epicenter

Disc

None of these

proton

electron

neutron

all of these

not felt

mild

strong

very strong