Questions

Electrical Energy is the energy of

The potential difference between the terminals of an electric heater is 60 V when it draws a current of 4 A from the source. What current will the heater draw if the potential difference is increased to 127.5 V ?

_____________________ states that the total current entering a junction is equal to the total current leaving the junction.

Many satellites are placed in orbit in which layer?

In the following question, four words are given out of which one word is incorrectly spelt. Select the incorrectly spelt word

What is called the speedy cold winds blowing from the Uruguay side in the Pampas region of Argentina?

Solve : 8,23,199.98 × 99.92 = ? × 80,000

Read the passage carefully and choose the best answer to each question out of the four alternatives and click the button corresponding to it.

In the world today we make health an end in itself. We have forgotten that health really means to enable a person to do his work and do it well. A lot of modern medicine, and this includes many patients as well as many physicians, pay very little attention to health but very much attention to those who imagine they are ill. Our great concern with health is shown by the medical columns in newspapers, the health articles in popular magazines and the popularity of television programmes and all those books on medicine. We talk about health all the time. Yet for the most part the only result is more people with imaginary illness. A healthy man should not be wasting time talking about health : he should be using health for work.

Talking about health all the time makes people