Mid-termkey

# Mid-termkey - Mid-term Name ID Key 1 F k Q1 Q 2 r 2 k 1 k 1...

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Name: Key ID: 1. F on Q2 follows the line defined by Q1 and Q2, and points to Q1. 2. Gauss’ Law: the electric flux through an enclosed surface equals to the charge inside divided by the constant of permittivity ε 0. Ampere’s Law; the closed line integral of the magnetic field projected on to the closed loop equals to the enclosed current times the permeability μ 0 . 3. Faraday’s Law: the induced emf equals the negative magnetic flux change rate with respect to time: Lentz Law: an induced current flows so that the magnetic field it creates opposes the change in the magnetic flux that causes the current. 4. 5. N r k r Q Q k F k k 1 1 1 2 1 2 2 1 1 2 = = = = = 0 ε q S d E I l d B = 0 μ dt d emf B Φ - = I = 1 μA Q μC 60 sec 60 μA 1 = = = t I Q (V) 10 99 8 (V) 10 6 10 60 10 99 8 6 2 6 9 × = × × × = = - - . . r Q k U A L R ρ = 1 1 2 1 2 4 4 ) ( ) 2 ( R A L A L R = = = ) 2 )( ( 2 1 L A AL Volume = = , = Heat generated decreases by 4

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Mid-termkey - Mid-term Name ID Key 1 F k Q1 Q 2 r 2 k 1 k 1...

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