The circuit shown in the figure contains two ideal diodes \( D_1 \) and \( D_2 \). If a cell of emf 3V and negligible internal resistance is connected as shown, then the current through \( 70 \, \Omega \) resistance (in amperes) is:
Charges are uniformly spread on the surface of a conducting sphere. The electric field from the center of the sphere in a point outside the sphere varies with distance \( r \) from the center as
Cancer is a term used to derive the diseases caused due to cellular irregularities. The disease can begin in any of the trillion cells that form the human body. When these cells get old or damaged, then they die and are replaced by new cells. However, this process is deranged when cancer arises. When cells should die, they live on, and new cells grow when they aren't needed.
These excess cells can divide endlessly, potentially forming tumors. Changes in genes that hold how our cells function, particularly how they grow and split, cause cancer. Accelerating cell division rates or standing in normal control can result in gene mutations. The genes sometimes cause cancer we obtain from our parents.
There are many types of cancer. They are named for the organs or tissues where cancer evolves. Here are some categories such as;