Examlex
A tiny 0.0250-µg oil drop containing 15 excess electrons is suspended between two horizontally closely-spaced metal plates that carry equal but opposite charges on their facing surfaces. The plates are both circular with a radius of 6.50 cm. (k = 1/4πε0 = 9.0 × 109 N ∙ m2/C2, e = 1.6 × 10-19
C)
(a) How much excess charge must be on each plate to hold the oil drop steady?
(b) Which plate must be positive, the upper one or the lower one?
Innate Ability
A natural talent or skill that a person is born with.
Active Listening
The practice of giving full attention to a speaker, understanding their message, and responding thoughtfully.
Own Biases
Own biases are the preset inclinations or prejudices an individual holds towards other people, objects, or ideas, often unconsciously influencing their perceptions and decisions.
Listening for Feelings
Paying attention to and understanding the emotions or sentiments expressed by someone, beyond just the words spoken.
Q18: Two tiny beads are 25 cm apart
Q23: A magnifying glass has a focal length
Q30: A number of resistors are connected across
Q37: Two point charges, Q<sub>1</sub> and Q<sub>2</sub>,
Q46: An air-filled capacitor has a potential difference
Q57: A current of 5.0 A flows
Q85: Calculate the current through a 10.0-m long
Q116: Four point charges of magnitude 6.00 μC
Q119: In a double-slit experiment, the slit separation
Q124: An electronic component with a 17-Ω