Inductors When the current through an inductor decreases, the amount of energy stored in the electromagnetic field doubles remains the same decreases increases doubles remains the same decreases increases ANSWER DOWNLOAD EXAMIANS APP
Inductors 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? 91 mA 78 mA 400 mA 57 mA 91 mA 78 mA 400 mA 57 mA ANSWER DOWNLOAD EXAMIANS APP
Inductors The voltage across a coil when di/dt = 20 mA/s and L = 8 H is 1.6 mV 2.5 mV 160 mV 16 mV 1.6 mV 2.5 mV 160 mV 16 mV ANSWER DOWNLOAD EXAMIANS APP
Inductors The winding resistance of a coil can be increased by changing the core material using a thinner wire increasing the number of turns or using thinner wire increasing the number of turns changing the core material using a thinner wire increasing the number of turns or using thinner wire increasing the number of turns ANSWER DOWNLOAD EXAMIANS APP
Inductors Three 15 mH inductors are in series. The total inductance is 5 mH 45 mH 30 mH 15 mH 5 mH 45 mH 30 mH 15 mH ANSWER DOWNLOAD EXAMIANS APP
Inductors 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 4 V 12 V 0 V 6 V 4 V 12 V 0 V 6 V ANSWER DOWNLOAD EXAMIANS APP