When a biro pen rubbed on a dry silk cloth is moved very ...
When a biro pen rubbed on a dry silk cloth is moved very close to a piece of paper on a dry table, the pen is found to pick up the paper. This is because
both the pen and the cloth are magnetized
the pen is magnetized but the cloth is not
the pen is charged while the cloth is magnetized
both the pen and the cloth are charged
Correct answer is D
They are all charged either positively or negatively
Humidity is used to describe the amount of ...
The mouth piece of a telephone handset converts ...
In which of the following media does sound travel faster? ...
Mr. F. Abioye observed his image through a plane mirror, kept at a distance 4.7m away from him&...
One of the properties of gamma rays is that they are? ...
What is the total electrical energy consumed by using an electric cooker rated 1000W for 5 hrs? ...