1. c        2.    Delta[V 1]=4.0Volts  and I=0.04A

3.   Not Relevant   (B=10Tesla)

4.    q(25sec)=1.77E-2C

5. Delta[V]=10 Volts and R=1Ohm

6. a)    R(box)=37.5Ohms
b)    I1=0.16A        I2=0.04A         I3=0.12A
c)    DeltaV(3)=6.0Volts
d)    P1=0.16Watts
P2=0.08Watts
P3=0.72Watts

7.    a)    Tau=0.01sec
b)    emf-DeltaV(res)-DeltaV(cap)=0  ...
                 emf=10Volts
c)    DeltaV(cap)=3.93Volts
d)    I(long time)=0

8.    a)    I(0)=I(1)+I(2)
       I(2)R2-10Volts=0  .....total
        I(1)R1-5Volts-10Volts=0   .....lower
       5Volts-I(1)R1+I(2)R2=0    .....upper

b)    I(1)=0.15A
        I(2)=0.20A
        I(0)=0.35A
c)    DeltaV(1)=15Volts
        DeltaV(2)=10Volts   (resistor 3 is not included...no current, no drop).
d)    V(a)=15Volts    V(b)=10Volts     V(c)=V(b)=10Volts  (no drop or change from b to c).

9.    a)    resistivity=1.26E-8 Ohm*m
b)    DeltaV=0.40Volts
c)     Force is zero (parallel)
d)    ILBsin(theta)  theta is angle between current and field.