06:35What are inductors? (self-inductance) | Electromagnetic induction | Khan AcademyKhan Academy India - English382views
Multiple ChoiceA single loop of wire with a current of 0.3A produces a flux of 0.005 Wb. If the self-induced EMF on this loop is 10 mV, how quickly must the current be changing?373views1rank2commentsHas a video solution.
Multiple ChoiceAn inductor circuit with a single resistor in series with a single inductor has a time constant of 5.0ns. What is the value of the resistance if the inductor has a self-inductance of 3.0μH?205views
Textbook QuestionA long, straight solenoid has 800 turns. When the current in the solenoid is 2.90 A, the average flux through each turn of the solenoid is 3.25 * 10^-3 Wb. What must be the magnitude of the rate of change of the current in order for the self-induced emf to equal 6.20 mV?643viewsHas a video solution.
Textbook QuestionAt the instant when the current in an inductor is increasing at a rate of 0.0640 A/s, the magnitude of the self-induced emf is 0.0160 V. (b) If the inductor is a solenoid with 400 turns, what is the average magnetic flux through each turn when the current is 0.720 A?312viewsHas a video solution.
Textbook QuestionAt the instant when the current in an inductor is increasing at a rate of 0.0640 A/s, the magnitude of the self-induced emf is 0.0160 V. (a) What is the inductance of the inductor?314viewsHas a video solution.
Textbook QuestionA 2.50-mH toroidal solenoid has an average radius of 6.00 cm and a cross-sectional area of 2.00 cm^2. (a) How many coils does it have? (Make the same assumption as in Example 30.3.)466viewsHas a video solution.
Textbook QuestionInductance of a Solenoid. (b) A metallic laboratory spring is typically 5.00 cm long and 0.150 cm in diameter and has 50 coils. If you connect such a spring in an electric circuit, how much self-inductance must you include for it if you model it as an ideal solenoid?395viewsHas a video solution.