A diode with the i-v characteristic shown in Figure 8.8 is...

A diode with the $i-v$ characteristic shown in Figure 8.8 is connected in series with a $5-\mathrm{V}$ DC voltage source (in the forward-bias direction) and a load resistance of $200 \Omega$, similar to that shown in Eigure P8.34. Determine: a. The load current and voltage. b. The power dissipated by the diode. c. The load current and voltage if the load is changed to $100 \Omega$ and $500 \Omega$.

A diode with the $i-v$ characteristic shown in Figure 8.8 is connected in series with a $5-\mathrm{V}$ DC voltage source (in the forward-bias direction) and a load resistance of $200 \Omega$, similar to that shown in Eigure P8.34. Determine:
a. The load current and voltage.
b. The power dissipated by the diode.
c. The load current and voltage if the load is changed to $100 \Omega$ and $500 \Omega$.

A battery with an emf of $1.0 \mathrm{V}$ is connected to a $1.0-\mathrm{k} \Omega$ resistor and a diode (a nonohmic device) as shown in part (a) of the figure. The current that flows through the diode for a given voltage drop is shown in part (b) of the figure. (a) What is the current through the diode? (b) What is the current through the battery? (c) What is the total power dissipated in the diode and resistor? (d) Suppose the battery emf were increased so that the power dissipated in the 1.0 -k.\Omega resistor doubled. Would you expect the power dissipated in the diode to double? If not, would it increase by a factor greater than 2 or less than $2 ?$ Explain briefly.

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