Explanation

A rectifier is an electrical device that converts Alternating Current (AC) into Direct Current (DC).

It works by allowing current to flow only in one direction using diodes.

Explanation

Horticulture is the study and practice of cultivating fruits, vegetables, flowers, and ornamental plants.

Including the design and management of gardens.

Explanation

Deficiency of iron in human body causes anemia.

Anemia: خون کی کمی کا مرض

AGM 28.02.28

Explanation

Vitamin C is water soluble vitamin so it cannot be stored in human body.

Citrus fruits, green leafy vegetables and tomatoes are good source of vitamin C.

Explanation

Spleen and Liver are the two organs mainly affected by malaria.

Malaria primarily targets the liver, where parasites multiply, and the spleen.

It becomes enlarged due to the destruction of infected red blood cells.

Explanation

Cirrhosis is advanced liver scarring caused by diseases like hepatitis and chronic alcoholism.

The liver attempts to repair itself after injury, leading to fibrosis.

Explanation

A reaction in which heat is absorbed is called an endothermic reaction.

These reactions lower the temperature of their surrounding area, thereby creating a cooling effect.

Explanation

The product RC (Resistance × Capacitance) gives the time constant in an RC circuit.

Its unit is Ohm × Farad = seconds (s), which is the unit of time.

Explanation

The principal axis is a straight line passing through the center of curvature and the pole of a spherical mirror.

It serves as the reference line for measuring distances and analyzing image formation in mirrors.

Explanation