Three 15 mH inductors are in series. The total inductance is – McqOptions

MCQOPTIONS

1.	Three 15 mH inductors are in series. The total inductance is
A.	15 mH
B.	30 mH
C.	45 mH
D.	5 mH
Answer» D. 5 mH

Discussion

No Comment Found

Related MCQs

A 240 H inductor is equivalent to a
The voltage across a coil when = 20 mA/s and = 8 H is
An inductance of 0.08 H is larger than
Two inductors, and , are in parallel. has a value of 25 H and a value of 50 H. The parallel combination is in series with , a 20 H coil. The entire combination is across an ac source of 60 V at 300 kHz. The total rms current is
An inductor, a 1 k resistor, and a switch are connected in series across a 6 V battery. At the instant the switch is closed, the inductor voltage is
An 18 V power supply is connected across a coil with a winding resistance of 180 . Current flow in the coil is
A switch, a 220 resistor, and a 60 mH inductor are in series across a 20 V battery. What is the current through the inductor two time constants after the switch is closed?
A 320 H coil is in series with a 3.3 k resistor. How long does it take for current to build up to its full value?
Five inductors are connected in series. The lowest value is 8 μH. If the value of each inductor is twice that of the preceding one, and if the inductors are connected in order of ascending values, the total inductance is
is directly proportional to frequency and inductance.