A negatively charged rod is brought near the cap of an el...
A negatively charged rod is brought near the cap of an electroscope. The cap is earthed momentarily while the charge is near to it. The rod is then removed. Which statement is correct?
The cap will be positively charged and the will be negatively charged
The cap will be negatively charged and the leaf will be positively changed
The cap and the leaf will be positively charged
The cap and the leaf will be negatively charged
none
Correct answer is D
No explanation has been provided for this answer.
In which simple machine is the effort applied between the load and the fulcrum? ...
An object is placed 15cm in front of a concave mirror of radius 40cm. The image formed is ...
Which of the following properties makes metals ideal for cooking utensils? ...
For a rough inclined plane on which lies a body of weight W, the angle θ in the diagram above ...
Which of the following are produced after a nuclear fusion process? i. one heavy nucleus. ii. ne...
If the partial pressure of water vapour at 27°C is 18 mm Hg and the saturated vapour pressure of...