NCERT solution for class 7 || Science || Chapter 14 -Electric current and its effect
NCERT solution . > Class 7 >Science NCERT solution for class 7 || Science || Chapter 14 -Electric current and its effect Chapter 14 -Electric current and its effect Exercise Q1. Draw in your notebook the symbols to represent the following components of electric circuits : connecting wires switch in the off position sell switch in the on position and battery Answer - Q2. Draw the circuit diagram to represent the circuit shown in figure 14 . 21. Answer - In the above diagram the safety pin is not attached to the holding pin so the circuit is incomplete .It acts as a switch when we attached to the sefty pin to the holding pin then circuit is complete and the bulb become glow Q3. Figure 14 .22 show found four cells fixed on a board draw lines to indicate how you will connect their terminals with wires to make a battery of four cells? Answer - Q4. A bulb in a circuit shown in a figure 14 . 23 does not glow can you ident...