A 220 ≈í¬© resistor is in series with a 2.2 ¬¨¬µF capacitor. – McqOptions

MCQOPTIONS

1.	A 220 ≈í¬© resistor is in series with a 2.2 ¬¨¬µF capacitor. The time constant is%!
A.	48 ¬¨¬µs
B.	480 ¬¨¬µs
C.	2.42 ¬¨¬µs
D.	24 ¬¨¬µs
Answer» C. 2.42 ¬¨¬µs

Discussion

No Comment Found

Related MCQs

A 0.00022 F capacitor equals how many micro-farads?~!
Two series capacitors (one 2 ¬¨¬µF, the other of unknown value) are charged from a 24 V source. The 2 ¬¨¬µF capacitor is charged to 16 V and the other to 8 V. The value of the unknown capacitor is~!
Total parallel capacitance is less than that of the smallest capacitor in parallel.%!
An uncharged capacitor and a 1 k≈í¬© resistor are connected in series with a switch and a 6 V battery. At the instant the switch is closed, the voltage across the capacitor is%!
Capacitance is directly proportional to plate area and plate separation.%!
XC is inversely proportional to frequency and capacitance.%!
Energy is stored by a capacitor in a magnetic field.%!
A capacitor of 2,000 pF is greater than%!
A 0.47 ¬¨¬µF capacitor is across a 2 kHz sine wave signal source. The capacitive reactance is%!
Five time constants are required for a capacitor to charge fully or discharge fully.%!