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Name PRE-LAB PREPARATION SHEET FOR LAB 1-ELECTRIC CHARGES, FORCES, AND FIELDS Du

ID: 1880030 • Letter: N

Question



Name PRE-LAB PREPARATION SHEET FOR LAB 1-ELECTRIC CHARGES, FORCES, AND FIELDS Due at the beginming of lab) Directions Read over Lab 1 and then answer the following questions about the procedures 1. Describe briefly what types of observations you will make in Activity 1-1 to determine whether like or unlike charges attract each other 2. What do you predict will happen to the force between two charges when the distance between them decreases? How will you test this qualitatively? 3. What do you predict will happen to the force between two charges when the sign of one of the charges is changed? What do you predict will happen when a chargad foam cup is brought near an uncharged, aluminum foil-covered cup? 4. Describe briefly how you will explore the direction of the electric field pro- duced by a positively charged rod in Activity 3-1. 5. LAB 1: ELECTRIC CHARGES, FORCES, AND FIELDS

Explanation / Answer

1. Like chrges repel each other and unlike charge attract each other

2. Since force is inversely proportional to d2 hence as distance decrease than force between charges increases

3. As sign of one charge changes than nature of force will also changes that means it may become +ve to -ve and vice versa

4. When charged foam is brought near alumunium foil than foil become charged due to induction

5 Direction of electric field of charged rod is always away from rod and it will be always perpendicular to equipotential surface