1. Three electrons are placed at the coners of a 45 degreetriangle(triangle is a

Question

1. Three electrons are placed at the coners of a 45 degreetriangle(triangle is a right triangle). The distance along thehorizontal and the vertical corners are 10^-8. Find the magnitudeand direction.(no a text book question) 2. A 1 kilo ohm resistor is connected to a capacitor to forman RC circuit.It's found that after 2 X10^-3s the voltage in thecapacitor decreases to 10% of its initial value.What is thecapacitance?(not from book) 1. Three electrons are placed at the coners of a 45 degreetriangle(triangle is a right triangle). The distance along thehorizontal and the vertical corners are 10^-8. Find the magnitudeand direction.(no a text book question) 2. A 1 kilo ohm resistor is connected to a capacitor to forman RC circuit.It's found that after 2 X10^-3s the voltage in thecapacitor decreases to 10% of its initial value.What is thecapacitance?(not from book)

Explanation / Answer

   as from the given we can see that thevoltage is    V = 0.90 Vo    so we can get the capacitance from    V = Vo (1 -e-t/RC)    0.90 Vo =Vo (1 - e-t/RC)    0.90 = (1 - e-t/RC)    e-t/RC = 1 - 0.90             = 0.10    - t / R C = ln 0.10    solve for the capacitance C

Related Questions

Navigate

• Browse (All)
• Browse 1
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.