Dr. K C Trikha and N K Sehgal Solutions for Chapter: Electric Currents and Circuits, Exercise 11: Something to know

The thin metal wire inside a electric bulb, is known as-

When an electric current starts flowing in an electric bulb, it starts emitting light because its—

The basic electric circuit needs to have-

The electric bulb, in the circuit shown here, would glow when-

The relevant examples (2 each) have been correctly tabulated only in table—

The science teacher, on entering the class, observed that Ritika was looking quite upset. When she asked her the reason, Ritika told her that she had forgotten her raincoat in the bus. The teacher consoled her and advised her to be careful and particular about her belongings. She also told her not to get too upset and stay positive in her thoughts. She told her that positive thoughts light up our life in much the same way as an electric current lights up the bulb through which it flows. 
Identify the values conveyed by the teacher to Ritika. 

The science teacher, on entering the class, observed that Ritika was looking quite upset. When she asked her the reason, Ritika told her that she had forgotten her raincoat in the bus. The teacher consoled her and advised her to be careful and particular about her belongings. She also told her not to get too upset and stay positive in her thoughts. She told her that positive thoughts light up our life in much the same way as an electric current lights up the bulb through which it flows. 
How does an electric bulb 'light up' when an electric current flows through it? 

The science teacher, on entering the class, observed that Ritika was looking quite upset. When she asked her the reason, Ritika told her that she had forgotten her raincoat on the bus. The teacher consoled her and advised her to be careful and particular about her belongings. She also told her not to get too upset and stay positive in her thoughts. She told her that positive thoughts light up our life in much the same way as an electric current light up the bulb through which it flows. 
Have a group discussion in which one student states some situation/incident. Let the other students give their suggestions about dealing with that situation/ incident.