The magnetic field strength is more in the region where the field lines are crowded. This means the field strength is maximum near the poles and it reduces as we go away from the poles. The direction of the magnetic ...
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The correct option is (B). When there is a lack of oxygen, muscle cells perform anaerobic respiration, breaking down glucose into lactic acid and releasing a small amount of energy. Hence, the products formed are lactic acid and energy. Class 10 ...
A is true but R is false. When current increases in a conductor, the magnetic field becomes stronger. This causes a greater deflection of the compass needle, not a decrease. Thus, assertion is false, while the reason is scientifically ...
The correct option is (d) NaHCO₃. Sodium bicarbonate is a mild, non-corrosive base commonly used in baking soda. It is safe, weakly alkaline, and does not harm or corrode, unlike strong bases such as sodium hydroxide or calcium hydroxide. Class 10 ...