Question
Sometimes, a crackling sound is heard while taking off a sweater during winters. Explain.
✓
Answer
The crackling sound heard, while taking off a sweater during winters is due to rubbing of two objects, Le body and the wool. The rubbing of the static charges produces lightning or the spark in our clothes that produces a crackling sound. The electric charges produced by rubbing are called static charges.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Can we use our natural resources forever ?
Name the device to detect electric charge on a body.
A negatively charged object repels another charged object held near it. What is the nature of charge on the other object?
What type of clothes should we buy for summer; cotton or clothes made from synthetic materials? Give reason for your answer.
What will you observe when the metal top of an electroscope is touched with a plastic comb rubbed in dry hair? Give reason for your answer.
What is meant by a luminous object$?$ Name two luminous objects.
→Why chromium is used for electroplating?
Name the gas present in atmosphere which is mainly responsible for causing global warming.
Observe the following circuit given in figure.
Current does not flow in the circult, if there is a gap between the two wires. Does it indicate that air is a poor conductor of electricity? Does air never conduct electricity? Explain.
Current does not flow in the circult, if there is a gap between the two wires. Does it indicate that air is a poor conductor of electricity? Does air never conduct electricity? Explain.
Explain how the use of CNG in automobiles has reduced pollution in cities ?