Growth & Decay MCQs : This section focuses on the "Growth & Decay". These Multiple Choice Questions (MCQs) should be practiced to improve the Growth & Decay skills required for various interviews (campus interview, walk-in interview, company interview), placement, entrance exam and other competitive examinations.
Question 1
A circuit has a resistance of 2 ohm connected in series with a capacitance of 6F. Calculate the charging time constant.
A. 3
B. 1
C. 12
D. 8
Question 2
A circuit has a resistance of 5 ohm connected in series with a capacitance of 10F. Calculate the discharging time constant.
A. 15
B. 50
C. 5
D. 10
Question 3
The charging time constant of a circuit consisting of a capacitor is the time taken for the charge in the capacitor to become __________ % of the initial charge.
A. 33
B. 63
C. 37
D. 36
Question 4
The discharging time constant of a circuit consisting of a capacitor is the time taken for the charge in the capacitor to become __________ % of the initial charge.
A. 33
B. 63
C. 37
D. 36
Question 5
What is the value of current in a charging capacitive circuit if the initial current is 2A at time t=RC.
A. 0.74A
B. 1.26A
C. 3.67A
D. 2.89A
Question 6
What is the value of current in a discharging capacitive circuit if the initial current is 2A at time t=RC.
A. 0.74A
B. 1.26A
C. 3.67A
D. 2.89A
Question 7
While charging, what happens to the current in the capacitive circuit?
A. Decreases linearly
B. Increases linearly
C. Decreases exponentially
D. Increases exponentially
Question 8
While charging, what happens to the voltage in the capacitive circuit?
A. Decreases linearly
B. Increases linearly
C. Decreases exponentially
D. Increases exponentially
Question 9
While discharging, what happens to the current in the capacitive circuit?
A. Decreases linearly
B. Increases linearly
C. Decreases exponentially
D. Increases exponentially
Question 10
While discharging, what happens to the voltage in the capacitive circuit?
A. Decreases linearly
B. Increases linearly
C. Decreases exponentially
D. Increases exponentially