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WorksheetsELECTRIC CURRENT AND ITS EFFECT , CLASS-7
Total questions: 15
Worksheet time: 9mins
fill in the blanks : A_____ is a source of electric current but this current can't flow on its own.
cell
wire
switch
none of the above
full form of ISI and MCB is.....
international space of india , master caught ball
india is incredible, monster circuit breaker
Indian standard institute, miniature circuit breaker
Indian standard institute, my callous brother
MINAITURE CIRCUIT BREAKERS WORK ON WHICH PROPERTY OF ELECTRICITY N WHO DISCOVERED THIS PROPERTY
heating property , Hans Christian Oersted
magnetic property , Micheal Jackson
who cares
Magnetic property,Hans Christian Oersted
true /false: A car battery is just a big sell
True
False
The more the coils on the iron object the electro magnet would be ...
both of the given
same of course
stronger
weaker
In an electromagnet what really becomes the magnet the coil of wire or the iron object?
iron
coil
nothing a magnet will be a magnet not coil or iron
the switch
a continuous conducting path between the two terminals of a cell or battery along which electric current flows is called as
none of the above
circuit
both of the above
current
longer line in the symbol for a cell represents its..
negative terminal
both
none
positive terminal
Full form of CFL is
caught fire lamp
compact fitting lap
compact fluorescent lamp
compact filling lamp
none of the above
filament of the bulb is made of
steel
iron
tongue
tungsten
Element of iron is made of
copper
iron
steel
plasctic
nichrome
when too many appliances are connected to one socket it is called...
short circuit
someting
overloading
anything
mobile chargers have...
low resistivity
high resistivity
no resistivity
none
MCB works on heating effect of electric current
false
true
the magnet made by using electric current is called an
circuit
magnet
electromagnet
something
