Lakhmir Singh and Manjit Kaur Solutions for Chapter: Electric Current and Its Effects, Exercise 5: Questions Based on High Order Thinking Skills (HOTS)

The bulb in the circuit shown below does not glow. Can you identify the problem? Make necessary changes in the circuit to make the bulb glow. 

Two separate sets of two cells each are shown below. Draw lines to indicate how you will connect their terminals with wires to make batteries of two cells each.

The figure given below shows four cells fixed on a wooden board. Draw lines to indicate how you will connect their terminals with wires to make a battery of four cells. 

Consider the following materials:
Copper, Tungsten, Chromium, Aluminium, Nichrome, Iron 
Which of these is used to make heating element of an electric iron?

Consider the following materials:
Copper, Tungsten, Chromium, Aluminium, Nichrome, Iron 
Which of these is used to make filament of an electric bulb?

In the circuit diagram shown below:

Would any of the bulbs glow when the switch is in the ‘off position?
 

In the circuit diagram shown below:

What will be the order in which the bulbs $\mathrm{A}$, $\mathrm{B}$ and $\mathrm{C}$ will glow when the switch is moved to the ‘on’ position?