1. 10 k resistor is connected to 100 µF capacitor and connected to a 50 V DC pow

Question

1. 10 k resistor is connected to 100 µF capacitor and connected to a 50 V DC power supply. Initially, the power supply is on. Assume someone disconnect the resistor from the power supply. The time elapsed to drop the capacitor voltage to 20 V is 65 seconds. What is the time constant of the circuit?

a.60

b.1

c.1000

d.65

2. What is unit of time constant?

a. s

b. f

c. no unit

d. V

3. Time constant of a discharging capacitor depends on what parameters ?

a. inial voltage of the capacitor

b. none of the above

c. resistance of the RC circut

d. final voltage of the capacitor

4. ...................... can store electrical energy.

a. multimer

b. resistor

c. capacitor

d. inductor

5. 10 k resistor is connected to 10 F capacitor and connected to a 50 V DC power supply. What is the maximum charge on the capacitor?

a.5 C

b. 0.5 C

c. 50 C

d.500 C

Explanation / Answer

1) time constant = RC = 10000*100*10-6 = 1

2) s ( seconds)

3) reisitance of the RC circuit

4) capacitor can store electrical energy

5) Q = CV = 10*50 = 500 C in steady state.

Related Questions

Navigate

• Browse (All)
• Browse 1
• Subjects

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