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Electric Current and its Effects

Total questions: 25

Worksheet time: 20mins

Name
Class
Date
1.

The longer line represents the.........

a)

Positive Terminal

b)

Negative Terminal

c)

None of these

d)

All of these

2.

Switch 'ON' and switch 'OFF' position are represented by........

a)

Equations

b)

Languages

c)

Symbols

d)

its none of these?

3.

A single battery is called...........

a)

A Battery itself

b)

Cell

c)

None

4.

What symbol is used for a Electric cell

a)
b)
c)
d)
5.

What symbol is used for " Switch 'ON' positon "

a)
b)
c)
d)
6.

What symbol is used for a Battery

a)
b)
c)
d)
7.

Is this a Circuit Diagram? 😀

a)

Yes, it is

b)

No, its not

c)

Its none of these

d)

Both 1 and 2 is correct

8.

Hmm..... what kind of a circuit is this🧐

a)

Its just a circuit

b)

Its a Closed Circuit

c)

Its a Open Circuit

9.

Type in the Full form of MCB

a)

Miniature Circuit Breaker

b)

Miniature Action Figure

c)

Miniature Circuit Destroyer

10.

This is a......

a)

Piece a iron

b)

Element of Electric iron

c)

A Iron Blade

11.

What is this indicated by the black arrow

a)

Glowing filament of an electric bulb

b)

A Glowing Bulb

c)

None of these

12.

Identify This Thing

a)

DCU

b)

MCU

c)

MCB

13.

Who is this?

(a)  

14.

What is this?

a)

Circuit

b)

Electromagnet

c)

Open Circuit

d)

Closed Circuit

15.

The needle of a compass is a

a)

Magnet

b)

Large Magnet

c)

Tiny Magnet

16.

What is this

a)

Electric bulb

b)

Electric Bell

c)

Electric cell

17.

What are these

a)

Fuses

b)

Miniature Fuses

c)

Cartridge Fuses

d)

Electrical Fuses

18.

Wires made from special materials melt quickly and break when large electric currents are passed through them

a)

True

b)

False

19.

there is a maximum limit on the electric which can safely flow through a circuit. if by accident the current exceeds this safe limit, the wires may be overheated and cause.....

a)

Shock

b)

Fire

c)

Electric Shock

20.

Hans Christian Oersted discovered

a)

Magnetic Effect Of Electric Current

b)

MCB

c)

Heating Effect of Electric Current

d)

MCU

21.

What are the things that consists in a Cartrigde fuse

a)

Metal Cap, Wires

b)

Metal Cap, Glass tube

c)

Glass panes, Metal

d)

Reinforced Glass, Obsidian

22.

What happens if the filament of the bulb is broken

a)

The circuit would be incomplete, causing the bulb not to glow

b)

The circuit would be complete, causing the bulb to glow

c)

The circuit would break and fire comes out

23.

In a MCB ( Miniature Circuit Breaker ) Switch turns off on by ________ when a when a circuit overloads. once the problem of the circuit is cleared or rectified, we can switch _____ the MCB once again

a)

Flipping the switch, ON

b)

Flipping the switch, OFF

c)

Its own, ON

d)

Its own, OFF

e)

None of these

24.

Hmm.....What are the 2 types of Fuses

a)

There is only 1, its Plug fuse

b)

There is 1, its Cartrigde fuse

c)

There are 2, They are Plug and Cartrigde Fuse

25.

What is Plug Fuse used for

a)

Its Used in buildings

b)

Its Used in Electric devices

c)

None of these

d)

All of these