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# It is useful to define inductance typically denoted

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Unformatted text preview: ted by L, as the coefficient of the induced times the change in current.   This is the magnetic analogy to capacitance.   Inductance is a function of geometry as well. NΦB LI = N Φ B ⇒ L = I Physics 2B - Summer Session 2 - C. Palmer August 28, 2013 12   This is the magnetic analogy to capacitance.   Inductance is a function of geometry as well.   Objects with significant inductance are called inductors   Symbol   SI Units – henry, H V ⋅s [L] = H = A Physics 2B - Summer Session 2 - C. Palmer NΦB L= I August 28, 2013 13   Find the inductance in a solenoid   N – loops   l – length   A – cross-sectional area   I – current NΦB L= I Physics 2B - Summer Session 2 - C. Palmer µ0 NI B= l N, l August 28, 2013 14   Find the inductance in a solenoid   N – loops   l – length   A – cross-sectional area   I – current NΦB L= I Physics 2B - Summer Session 2 - C. Palmer µ0 NI B= l N, l August 28, 2013 15   Find the inductance in a solenoid µ0 NI Φ B = BA = A   l – length l   A – cross-sectional area   N – loops   I – current NΦB L= I Physics 2B - Summer Session 2 - C. Palmer N, l August 28, 2013 16   Find the inductance in a solenoid µ0 NI Φ B = BA = A   l – length l   A – cross-sectional area   N – loops   I – current µ0 N A L= l 2 Physics 2B - Summer Session 2 - C. Palmer N, l August 28, 2013 17   Find the inductance in a solenoid µ0 NI Φ B = BA = A   l – length l   A – cross-sectional area   N – loops   I – current L = µ0 n V 2 Physics 2B - Summer Session 2 - C. Palmer N, l August 28, 2013 18 An inductor is placed in a circuit with a battery that has an EMF, ɛ, and a resistor with a resistance, R. The inductance, L, of the inductor depends upon: A)  The amount of current, I, present in the B)  C)  D)  E)  inductor. The time rate of change of the current in the inductor. The EMF, ɛ, of the battery. The geometry of the inductor. The resistance of the resistor, R. Physics 2B - Summer Session 2 - C. Palmer August 28, 2013 19 An inductor is placed in a circuit with a battery that has an EMF, ɛ, and a resistor with a resistance, R. The inductance, L, of the inductor depends upon: A)  The amount of current, I, present in the B)  C)  D)  E)  inductor. The time rate of change of the current in the inductor. The EMF, ɛ, of the battery. The geometry of the inductor. The resistance of the resistor, R. Physics 2B - Summer Session 2 - C. Palmer August 28, 2013 20   Now we analyze the simple circuit with a resistor, R, and inductor, L, in series with a battery.   Kirchhoff ’s loop rule Physics 2B - Summer Session 2 - C. Palmer August 28, 2013 21   N...
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