Dhiren M Doshi Solutions for Chapter: Electric Current and Its Effects, Exercise 3: Exercise
Dhiren M Doshi Science Solutions for Exercise - Dhiren M Doshi Solutions for Chapter: Electric Current and Its Effects, Exercise 3: Exercise
Attempt the free practice questions on Chapter 14: Electric Current and Its Effects, Exercise 3: Exercise with hints and solutions to strengthen your understanding. Exploring Science BASED ON THE LATEST NCF GUIDELINES 7 solutions are prepared by Experienced Embibe Experts.
Questions from Dhiren M Doshi Solutions for Chapter: Electric Current and Its Effects, Exercise 3: Exercise with Hints & Solutions
Name the materials used for making:
(a) filament of an electric bulb
Name the materials used for making:
(a) heating element of an electric heater
Name any four electrical appliances in which the heating effect of electric current is utilised.
Give the relationship between the amount of electric current passed and the heat produced.
What is short-circuit? What are the causes of short circuit?
Write three uses of an electromagnet.
Ram and Neeraj are alone at home. Ram is watching TV while Neeraj is playing with his toy. The battery in his toy gets discharged. He decides to charge it and connects the plug to the same socket to which the TV is connected. The table fan in their room is also connected to that socket. Suddenly, after a few seconds, Ram sees a heavy spark near the socket. He immediately puts off the main switch and calls his neighbours for help.
(a) What do you think is the reason for the heavy spark in the socket?
(b) What do you learn from Ram's behaviour?
Why does the bulb in the circuit given below not glow? Also, draw the circuit with required change.
