Questions

What of the given below devices converts chemical energy to electrical energy?

What is the heat generated (in J) in a heating element of resistance 800 Ω when a current of 0.2 A passes through it for 40 seconds?

In the following passage, some of the words have been left out. Read the passage carefully and select the correct answer for the given blank out of the four alternatives.

Left to itself, then, attention _____________ obeys natural laws and follows the line of least resistance. _______________ far the larger portion of our attention is of this type. Thought often runs on hour after hour when we are neither conscious of effort _____________ struggle to compel us to cease thinking about this thing and begin thinking about _________. Indeed, it may be doubted ___________ this is not the case with some persons for days at a time, instead of hours. The things that present themselves to the mind are the things which occupy it; the character of the thought is determined by the character of our interests.

be doubted ___________ this is not the case

In the following passage, some of the words have been left out. Read the passage carefully and select the correct answer for the given blank out of the four alternatives.

It is necessary, then, to keep our ____________ acts under some surveillance of attention, to pass them in review for inspection every now and _________, that we may discover possible modifications which will make them more serviceable. We need to be __________, constantly to find out better ways of doing things. Habit takes care of our standing, walking, sitting; but how many of us could _________ improve his poise and carriage if he would? Our speech has become largely automatic, but no doubt all of us might remove _____________ of enunciation, pronunciation or stress from our speaking.

to keep our ____________ acts under some surveillance

In the following question, out of the given four alternatives, select the one which is opposite in meaning of the given word.

Extant

T cell activation requires

Which one is not the cause of kidney stone formation?

Which State in India has the highest forest cover?