One major reason why electrical appliances in homes are n...
One major reason why electrical appliances in homes are normally earthed is that the-----------
person touching the appliance is safe from electric shock
appliances are maintained at a higher p.d. than the earth
appliances are maintained at a lower p.d. than the earth
appliances are maintained at the same p.d. with that of the earth
Correct answer is A
Earthing of an electrical appliance meant the outer metallic case of appliance is connected with earth, wire which is welded to the end of a copper rod and it is burned in the ground. It save the appliance during short-circuiting by passing Excessive current to earth
The diagram above shows two capacitors P and Q of capacitance 2μF and 4μF respectively connect...
In which of the following situations is friction not useful? ...
\(^{27}_{13}Al\) + \(^{1}_{0}n\) \(\Rightarrow\) \(^{24}_{11}Na\) + X...