A. In the circuit to the right assume that the bulbs are identical and that the resistance of each does not depend on the current. What is the voltage across bulb W? Give answer in terms of the EMF of the battery, V.
A. In the circuit to the right assume that the bulbs are identical
and that the resistance of each does not depend on the current. What is
the voltage across bulb W? Give answer in terms of the EMF of the battery,
V.
B. Now assume the bulbs in the circuit of question A are real (not
ideal) so their resistance changes as the current through them changes.
The resistors have the voltage vs. current relationship as shown to the
right. Does the voltage across bulb W increase, decrease, or remain the
same as that in question A? Explain.
C. With the help of the graph find the voltage across W and the current through it. Explain your reasoning.