Vinod wants to print the current date and time on the page. What function should he use to generate that? *

One wants to see a magnified image of an object in a mirror. What type of mirror should one use ?

Electric generator is used to generate current .

In the previous problem, the man wants to cross the river in the minimum time. In which directions, he should move? Find the minimum time to cross the river and his displacement (drift) along the flow.

Four parallel conductors, carrying equal currents, pass vertically through the four corners of a square WXYZ. In two conductors, the current is flowing into the page, and in the other two out into the page, and in the other two out of the page. In what directions must the currents flow to produce a resultant magnetic field in the direction shown at O, the centre of the square?

A gardener wants to give bushy appearance to plants in our college campus. i) What should he do to achieve the same? ii) Which property of phytohormones he must be aware of?

If a straight conductor is held normal to this page and current is flowing into the page, what is the direction of the electromagnetic field produced ?