Science MCQ (1 Marks)

Three bulbs A, B, C are connected in a circuit as shown in figure. When the switch is 'ON',

Choose the statement which is not correct in the case of an electric fuse.

Which of these is the correct arrangement of electric cells in a battery?

Which of these devices work due to the heating effect of electric current ?

Which of these consumes the least electricity for producing the same amount of light?

Which of these labels on an electric device confirms standard quality?

A common device that uses an electromagnet in its working is

A battery is a combination of

If the number of turns in the coil of an electromagnet is more, the strength of the electromagnet will be

Which of the following characteristic is most suitable material for making the core of an electromagnet?

When an electric current flows through a copper wire AB as shown in figure, the wire

The coil of wire contained in heater is known as

Circuit breaker device which can be used in place of fuse in domestic electric wiring is called

Which of the following precautions need not be taken while using electric gadgets/appliances/circuit?

When a switch is in OFF position,
(i) circuit starting from the positive terminal of the cell stops at the switch
(ii) circuit is open
(iii) no current flows through it
(iv) current flows after sometime
Choose the combination of correct answer from the following

A battery is a combination of

The filament of the bulb is made up of

Electromagnets are used in

The most suitable material for making the core of an electromagnet is