There will be attached file with pictures for the problems

Question 1:

The two segments of the wire in the figure have equal diameters but different conductivities σ_{1} and σ_{2}. Current *I* passes through this wire.

If the conductivities have the ratio σ_{2} / σ_{1} = 1.00, what is the ratio *E*_{2} / *E*_{1} of the electric field strengths in the two segments of the wire?

Question 2:

The conducting path between the right hand and the left hand can be modeled as a 11.0 cm diameter, 155 cm long cylinder. The average resistivity of the interior of the human body is 4.80 â„¦m. Dry skin has a much higher resistivity, but skin resistance can be made negligible by soaking the hands in salt water.

Question 3:

For the circuit shown in the figure, find the current through and the potential difference across each resistor. Take *R*_{1} = 1.60 â„¦, *R*_{2} = 6.90 â„¦, *R*_{3} = 1.60 â„¦, and *R*_{4} = 6.90 â„¦.

· Current through *R*_{1}:

· Potential difference across *R*_{1}:

· Current through *R*_{2}:

· Potential difference across *R*_{2}:

· Current through *R*_{3}:

· Potential difference across *R*_{3}:

· Current through *R*_{4}:

· Potential difference across *R*_{4}:

Question 4:

What power is dissipated by the R2 = 6.60 Ω resistor in the figure if R1 = 1.70 Ω?

Question 5:

A 0.340 μF capacitor is charged to 570 V. It is then connected to a 50 Ω resistor and allowed to discharge completely.

How much energy is dissipated by the 50 Ω resistor in 4 μs?

Subject | Science |

Due By (Pacific Time) | 07/26/2015 12:00 pm |

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