Three 15 mH inductors are in series. The total inductance is 30 mH 5 mH 15 mH 45 mH TRUE ANSWER : ? YOUR ANSWER : ?
The inductance of an iron-core coil decreases if the number of turns is decreased the length of the coil decreases None of these the iron core is removed 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 8 H 32 μH 64 μH 248 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 greater than 5 mH 9.9 mH less than 0.6 mH 9.9 mH or greater than 5 mH TRUE ANSWER : ? YOUR ANSWER : ?
The voltage across a coil when di/dt = 20 mA/s and L = 8 H is 1.6 mV 2.5 mV 16 mV 160 mV TRUE ANSWER : ? YOUR ANSWER : ?
The following coils are in parallel: 75 H, 40 H, 25 H, and 15 H. The total inductance is approximately 14 μH 2.2 μH 155 μH 6.9 μH 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 180 mV 1.8 mV 18 mV 1.25 mV TRUE ANSWER : ? YOUR ANSWER : ?
A sine wave voltage is applied across an inductor. When the frequency of the voltage is decreased, the current is decreased does not change momentarily goes to zero is increased TRUE ANSWER : ? YOUR ANSWER : ?
An 18 V power supply is connected across a coil with a winding resistance of 180 . Current flow in the coil is 100 mA 1 mA 10 mA 1 A TRUE ANSWER : ? YOUR ANSWER : ?
A 240 H inductor is equivalent to a 240 H inductor 0.000240 mH inductor 240 mH inductor 0.240 mH inductor TRUE ANSWER : ? YOUR ANSWER : ?