# Lab 1

Topics: Electric charge, Electron, Electricity Pages: 3 (360 words) Published: October 24, 2013
Lab 1

1. The white charge producer has a positive (+) polarity. The blue charge producer has a negative (-) polarity.

2. The positive charge builds significantly then remains as the charge producer is removed.

3. The negative charge builds significantly then remains as the charge producer is removed.

4. When the white charge producer is lowered then removed from the ice pail with out touching the positive charge builds then drops when the charger is removed.

5. When the ice pail is momentarily grounded while the charge producer is inside levels off close to zero.

6. When the charger is then removed the charge on the pale is negative.

7. Charging by contact required contact with the ice pail by the charger and leaves the ice pail the same polarity as the charger. Charging by induction does not involve contact but the pail must be grounded. Induction leaves the pail the opposite charges of the charger.

8. 3.12x10^14 electrons
50uC / 1.602x10^-19 C/electron = 3.12x10^14 electrons

9. 5.00x10^-4 C/m^2
(6.24x10^14 electrons)(1.602x10^-19 C/electron)/0.2m^2 = 5.00x10^-4 C/m^2

10. mgtanB
mgsinB/cosB
TcosB = mg
T=mgcosB
mgsinB

Lab 1

1. The white charge producer has a positive (+) polarity. The blue charge producer has a negative (-) polarity.

2. The positive charge builds significantly then remains as the charge producer is removed.

3. The negative charge builds significantly then remains as the charge producer is removed.

4. When the white charge producer is lowered then removed from the ice pail with out touching the positive charge builds then drops when the charger is removed.

5. When the ice pail is momentarily grounded while the charge producer is inside levels off close to zero.

6. When the charger is then removed the charge on the pale is negative.

7. Charging by contact required contact with the ice pail by the charger and leaves the ice pail the same polarity as the charger. Charging...