Set the voltage drop across the light bulbs to approximately 4 V by adjusting the knob of the power supply and the rheostat. Measure the voltage drop across and the current through the light bulb. Repeat the measurement for the other two light bulbs. Make a note on the brightness of each light bulb.

answer and explanation;

composition refers to both the types of minerals within a rock and the overall chemical makeup of the rock while texture refers to the size and arrangement of the minerals or grains that make up a rock. both composition and texture can be used to classify rocks, such as igneous rocks. texture describes how the rock became solid or crystallized from liquid, melted rock. composition of a rock describes the minerals that make up a particular rock.

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