Because inductors store energy, they are often used in circuits to deliver pulses of energy. Suppose in the circuit diagram shown below, pulses of energy are being delivered to a device with resistance R. This could be a bulb, a laser, a windshield wiper, or something else. When the switch is at position 1, the inductor L is energized by the DC power source with emf ɛ. The power source also has an internal resistance, represented by the small resistor with resistancer. When the inductor is fully energized, the switch flips to position 2 and the inductor transfers its energy to the resistor R. R Determine: The maximum energy that the inductor stores. The maximum current. How long it takes after moving the switch to position 2 for 90% of the energy stored to be transferred to the resistor R. ell

Because inductors store energy, they are often used in circuits to deliver pulses of energy. Suppose in the circuit diagram shown below, pulses of energy are being delivered to a device with resistance R. This could be a bulb, a laser, a windshield wiper, or something else. When the switch is at position 1, the inductor L is energized by the DC power source with emf ɛ. The power source also has an internal resistance, represented by the small resistor with resistancer. When the inductor is fully energized, the switch flips to position 2 and the inductor transfers its energy to the resistor R. R Determine: The maximum energy that the inductor stores. The maximum current. How long it takes after moving the switch to position 2 for 90% of the energy stored to be transferred to the resistor R. ell