If the current in an inductor is doubled, by what factor is the stored energy multiplied?
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A: The formula for the induced emf in term of mutual inductance is:
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- An EMF of 0.218V is induced in a coil when the current in a second coil is changing at a rate of 0.386A/s. What is the mutual inductance between the coils?The voltage across an inductor is proportional to the inductor and the derivative of the current that flow through it. Is it True or False?An engineer has a 68-mH inductor and 4 identical capacitors, each of 335 μF, and intends to build an L-C circuit from them. What is the highest oscillation frequency that can be achieved?
- What is the resonant frequency of a 0.590 mH inductor connected to a 45.0 µF capacitor?If there is initially 12V across a 100 ohm resistor in an RL circuit (only a resistor in series with an inductor), then how much current is there after 2 time constants have passed?How big is the inductor if there is 0.2A in the circuit after 50 ms?An inductor stores 775.79J of energy at a current of 3.19A. What is the inductance of the inductor?
- If the current in an inductor is tripled, by what factor is the stored energy multiplied?An emf of 96.0 mV is induced in the windings of a coil when the current in a nearby coil is increasing at the rate of 1.20 A/s. What is the mutual inductance of the two coils?If the current in an inductor is doubled, by what factor is the stored energy multiplied?
- If you triple the inductance of an inductor, by what factor will the amount of energy it can store increase?If the peak value of a 60Hz generator is 160V, what is the instantaneous voltage after the loop has rotated through 145°?A loop of wire has a self-inductance of 5.5 mH. You pass a current of 9.0 Amps though the loop, and then drop the current to 0 at a contastant rate over 3.5 seconds. What is the EMF generated?