Lakhmir Singh and Manjit Kaur Solutions for Chapter: Electric Current and Its Effects, Exercise 2: Short Answer Type Questions
Lakhmir Singh Science Solutions for Exercise - Lakhmir Singh and Manjit Kaur Solutions for Chapter: Electric Current and Its Effects, Exercise 2: Short Answer Type Questions
Attempt the practice questions on Chapter 14: Electric Current and Its Effects, Exercise 2: Short Answer Type Questions with hints and solutions to strengthen your understanding. AWARENESS SCIENCE for Seventh Class solutions are prepared by Experienced Embibe Experts.
Questions from Lakhmir Singh and Manjit Kaur Solutions for Chapter: Electric Current and Its Effects, Exercise 2: Short Answer Type Questions with Hints & Solutions
Explain why, any metal wire or metal strip cannot be used in place of fuse wire.
What type of electric fuse is used in individual electrical appliances? Explain with the help of a labelled diagram.
An electrician working in your home wants to replace a blown up fuse wire by a piece of copper wire. Would you agree? Give reason for your response.
What might happen if a fuse is not inserted in household electric wiring?
Explain why, filament-type electric bulbs are not power efficient. Name any two types of electric lighting devices which are much more energy efficient than filament-type bulbs.
Can you use an electromagnet for separating plastic bags from a garbage heap? Give reason for your answer.
State two important uses of electromagnets.
Why do we use iron for making an electromagnet and not steel?
