A 2 mH, a 3.3 mH, and a 0.2 mH inductor are connected in series. The total inductance is less than 0.2 mH 5.5 mH less than 5.5 mH 55 mH TRUE ANSWER : ? YOUR ANSWER : ?
Three 15 mH inductors are in series. The total inductance is 15 mH 5 mH 30 mH 45 mH TRUE ANSWER : ? YOUR ANSWER : ?
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 64 μH 32 μH 8 H 248 μH TRUE ANSWER : ? YOUR ANSWER : ?
An inductance of 0.08 μH is larger than 0.000008 H 0.00008 mH 0.0000008 H 0.000000008 H TRUE ANSWER : ? YOUR ANSWER : ?
An ohmmeter is connected across an inductor and the pointer indicates zero ohms. The inductor is good partly shorted open shorted TRUE ANSWER : ? YOUR ANSWER : ?
The following coils are in parallel: 75 H, 40 H, 25 H, and 15 H. The total inductance is approximately 2.2 μH 155 μH 6.9 μH 14 μH TRUE ANSWER : ? YOUR ANSWER : ?
A 5 mH, a 4.3 mH, and a 0.6 mH inductor are connected in parallel. The total inductance is 9.9 mH 9.9 mH or greater than 5 mH greater than 5 mH less than 0.6 mH TRUE ANSWER : ? YOUR ANSWER : ?
The winding resistance of a coil can be increased by changing the core material increasing the number of turns using a thinner wire increasing the number of turns or using thinner wire TRUE ANSWER : ? YOUR ANSWER : ?
The current through a 120 mH coil is changing at a rate of 150 mA/s. The voltage induced across the coil is 1.25 mV 1.8 mV 180 mV 18 mV TRUE ANSWER : ? YOUR ANSWER : ?
A switch, a 220 Ω 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? 57 mA 91 mA 400 mA 78 mA TRUE ANSWER : ? YOUR ANSWER : ?