physics 51 applied physics

;"> 21. A potential difference of 20 V is applied across the ends of a resistance of 5 D. The current through the resistance is a) 100 A b) 25 A c) 4 A d) 0.25 A. [c] 22. Which one of the following is the correct statement of Ohm's law? a) At constant temperature, the potential difference..

Generally matter exists in different physical states under different environment. For example, water exists in three states. At very low temperature solid state ice, at room temperature liquid state water and at high temperature gaseous state steam. Characteristic of these states ar..

The self inductance is called the electrical inertia of the coil or the circuit, just as mass is a measure of inertia in mechanical motion. If mass is large opposition is greater. Current flows through a circuit only when we overcome this inertia. If inductance is large, the induced e.m...

Physical Properties of Organic Halides (1) Boiling points of monohaloalkanes are higher than corresponding alkanes containing same number of carbon atoms, e.g. boiling point of chloromethane (-24 C) is higher than that of methane (-164 C) (2) For monohaloalkane compounds..

Table 8.4 Atomic & Physical proprieties of group 15 elements Properties Nitrogen It At. No. 7 15 33 51 83 At. Mass 14.01 30.97 74.92 . # 121.76 20..

> The density of graphite is 2.22 g cm-3 while that for diamond is 3.51 g cm-3. If 15,000 atmosphere of pressure is applied to graphite at a temperature of 300C, it would be at conversion equilibrium with diamond. It would change into diamond very slowly. At the moment we can on..

1. b 2.b 3. b 4. a 5. d 6. ..

. Events A and B are independent if P (A D B)P (A). P (B) otherwise they are dependent Note. Any physical description of the events will not tell us if they are independent or not. Corollary. If A and B are independent events, t..

Answer: Under similar physical conditions, the current flowing through a wire is directly proportional to the difference in potential applied across its ends. I $\propto$ V...

6. A wire of length L and radius r is fixed at one end. made of a materia , of Young , s modulus Y . If the A force F is applied to the other end. It produces ^ fa stretched by an amoU nt jc , then what is the an extension L The extension produced in another ..