Question

................. is a natural allotropic element.<br /><br /><br />1) magnesium<br />2) calcium<br />3) phosphorus<br />4) silicon​

Answer 1

The circuit in fig shows two cells connevtef in opposition to each other ..cell ... The circuit in fig shows two cells connevtef in opposition to each other ..cell E1 is of emf 6 V and internal resistamce 2ohm the cell E2 i og emf 4V amd internal rwsiarance 8ohm Find potentisl difference between the points A and B.