Q2 Multiple Correct Hard. Two circular coils of radii 5 cm and 10 cm carry currents of 2 A. The coils have 50 and turns respectively and are placed in such a way that their planes as well as their centres coincide. Magnitude of magnetic field at the common centre of coil is A. Q3 Single Correct Medium. Which of the following gives the value of magnitude field according to, Biot-Savart's law' A.
Q4 Single Correct Medium. How can global warming be reduced? Math Class Find the induced emf across the coil. Kishor visited his village and saw some trees on the boundary of the agricultural field. He thought that these are for portioning the land and discussed the matter with his grandfather. His grandmother explained him the utility of trees to the farmers and the farmland. With the help of an example, explain the utility of one such tree.
In the following question,a statement of assertion is followed by statement of a reason. Assertion : A plant girdled upto bast will die. Reason : Food transportation in such plant will cease followed by cessation of water transport.
If both, Assertion and Reason, are true but Reason is not the correct explanation of Assertion. If Assertion is true but Reason is false.
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