Q1.22Multiple choice
Fig. 1.10 represents a crystal unit of cesium chloride, CsCl. The cesium atoms, represented by open circles are situated at the corners of a cube of side 0.40nm, whereas a Cl atom is situated at the centre of the cube. The Cs atoms are deficient in one electron while the Cl atom carries an excess electron.
This question refers to a figure in the original PDF.
- (i)What is the net electric field on the Cl atom due to eight Cs atoms? A
- (ii)Suppose that the Cs atom at the corner A is missing. What is the net force now on the Cl atom due to seven remaining Cs atoms? 0.40 nm + – 1.23 Two charges q and –3q are placed fixed on x-axis separated by Cs Cl distance ‘d’. Where should a third charge 2q be placed such that Fig. 1.10 it will not experience any force? Electric Charges and Fields