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WorksheetsELECTRIC CIRCUITS
Total questions: 15
Worksheet time: 5mins
Which is this type of circuit?
Open circuit
Closed circuit
Both of these
None of these
This symbol represents a
electric cell
wire
battery
bulb
A combination of 2 or more cells is called a ?
Electric cell
Battery
None of these
All of these
Full form of MCB is ?
Miniature Circuit Breaker
Minute Circuit Builder
Both of these
None of these
find the incorrect statement.
Closed circuit means a complete electrical connection around which current flows or circulates.
A key or a switch can be placed only at a specific place in a circuit
Never touch a lighted electric bulb connected to the mains .
one reason for excessive currents in electrical circuits is the direct touching of wires
Our body is a _______________ of electricity ?
Conductor
Insulator
None of these
What is the full form of I S I ?
Indian Space Institute
Indian Standard Institute
Indian Shipping Institute
Why electrical wiring usually are covered with a layer of plastic?
To make it look pretty
To help electricity flow along the wire
To make it safe
To add more energy
Why is electrical wiring usually made from copper?
Because copper is shiny
Because copper conducts electricity
Because copper is not magnetic
Because copper insulate electricity
Tammy makes a complete simple circuit with one bulb and three batteries. The bulb lights for an instant and then goes out. Why?
Too much electricity flows through the bulb's filament
Not enough electricity flows around the circuit
The batteries are flat
The batteries are not good
STATE WHETHER TRUE OF FALSE
It is convenient to represent electric components by symbols.
True
False
Crane has a strong ………………….. attached to it.
Artificial magnets
Electromagnets
Magnets
In an electric circuit a fuse is a ………………….. to prevent possible fire.
safety device
harmful device
