Wednesday, April 25, 2012

week 10: Measure Resistance and Voltage of Sugar in Apple,watermelon,orange,mango juices and pepsi


Objective: to measure and observe resistance and voltage of sugar in certain drinks.

Apparatus:
  • 5 cup (Mango juice,Watermelon juice, Apple juice, Orange juice and Pepsi)
  • 1 cup of sugar
  • 9v battery
  • multimeter
Steps:
  1. pour juices in the each cup with the same level.
  2. put 1 teaspoon of sugar in the cup and stir it well then measure the resistance and voltage.
  3. repeat step 2 until 5 teaspoon of sugar been measure.

Result: the resistance and voltage value increase when each spoon of sugar been pour in the mineral water.


Spoon

Pepsi

Watermelon

Orange

Apple

Mango

1

4k = 1.438v

7.5k = 2.14v

5k = 1.67v

5k = 1.67v

6k = 1.87v

2

6k = 1.87v

9k = 2.37v

5k = 1.67v

6k = 1.87v

7k = 2.05v

3

6k = 1.87v

11k = 2.62v

5k = 1.67v

8k = 2.22v

9k = 2.37v

4

8k = 2.22v

12k = 2.73v

8k = 2.22v

8k = 2.22v

8k = 2.22v

5

12k = 2.73

14k = 2.92v

9k = 2.37v

10k=2.5v

11k = 2.63v






Conclusion: When sugar mixed can produce a different resistance and voltage because fruits. Each of the fruit contain different amount of glucose known as natural sugar. From the glycemic index, watermelon has a high level of sugar because it has high carbohydrate. Apple has low level of sugar and it suitable for diabetic patient.

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