WorksheetsElectric Current And It's Effects
Total questions: 13
Worksheet time: 10mins
Identify the symbol-
Electric Bulb
Electric Cell
Battery
Switch in ON position
Switch in OFF position
In olden days (a) were fitted in all buildings to prevent damage to electrical circuits and possible fires by high volt of current.(Please answer in small letters)
Which of the following devices usually can break a circuit - (Choose one or more options)
Switches
Fuses
MCBs
Miniature Circuit Breakers
Which of these are features of electro magnet usually? Choose one or more options
Temporary
Strong
Needs Electricity
Weak
Urvashi made a circuit and saw that some pins kept nearby were being attracted to the wires this is due to the __________ effect of electric current.
Heating
Gravitational
Magnetic
Attractive
Which of these is the symbol of a bulb?
Electric Bell works on the principle of-
Magnetism
Electromagnetism
Gravitation
Static Electricity
A bell only rings one time when switched on (The gong is hit only one time) because-
Insufficient Electricity
Electromagnet turned to or replaced by a permanent magnet
Wiring Problem
A mystical force
Ram saw a coil of wire glowing red hot in his room heater. What is it?
Glower
Just a coil of wire that became very hot
Element
A new kind of bulb
LEDs full form is-
Light Era Diode
Light Etern Dot
Light Emitting Dot
Light Emitting Diode
Scientist (a) was the first to notice the deflection of compass whenever current was passed through the wire near it. (Please answer in small letters)
What is the full form of MCB-
Massive Circuit Breaker
Massive Circuit Body
Mighty Circuit Breaker
Miniature Circuit Breaker
Why people prefer to put an MCB in their house instead of fuse nowadays- (Choose one or more options)
They are cheap.
Fuses need to be changed every time they blow out.
MCBs can be controlled manually.
Fuses are expensive.
