State Ohm's law ? How can it be verified experimentally ? Does it hold good under all conditions ? Comment.

State Hooke’s law. How can it be verified experimentally ?

What is ohm's law? How can it be verified?

State Ohm's law. How can it be verified experimentally ? Explain with the help of a circuit diagram. Express the result graphically.

State Ohm's law. How can it be verified experimentally ? Explain with the help of a circuit diagram. Express the result graphically.

State Archimedas' principle. How can it be experimentally verified ?

State and explain Lenz's law. Give one exmple to illustrate the law. How will you verify it experimentally ? Does it obey the principle of energy consevartion ?

State the law of conservation of mass. How is it verified experimentally ?

(a) Water boils in an electric kettle in 15 minutes after being swiched on. Using the same mains supply, should the length of the heating element be increased or decreased if the water is to boiled in 10 minutes ? Why ? Does Ohm's law hold good under all conditions ?

How can laws of reflection be experimentally verified?