Chapter 28: Q. 16 (page 790)
What is the value of resistor in FIGURE ?
Short Answer
The value of resistor is.
Chapter 28: Q. 16 (page 790)
What is the value of resistor in FIGURE ?
The value of resistor is.
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Get started for freeAn electric eel develops a potential difference between its head and tail. The eel can stun a fish or other prey by using this potential difference to drive a current pulse for . What are
(a) the energy delivered by this pulse and
(b) the total charge that flows?
he switch in a closes at and, after a very long time, the capacitor is fully charged. Find expressions for
(a) the total energy supplied by the battery as the capacitor is being charged,
(b) total energy dissipated by the resistor as the capacitor is being charged, and
(c) the energy stored in the capacitor when it is fully charged. Your expressions will be in terms of E, R, and C.
(d) Do your results for parts a to c show that energy is conserved? Explain.
Draw a circuit diagram for the circuit of FIGURE EX28.1.
The battery in FIGURE is short-circuited by an ideal ammeter having zero resistance.
a. What is the battery’s internal resistance?
b. How much power is dissipated inside the battery?
Bulbs A, B, and C in FIGURE Q28.10 are identical, and all are glowing.
a. Rank in order, from most to least, the brightnesses of the three bulbs. Explain.
b. Suppose a wire is connected between points 1 and 2. What happens to each bulb? Does it get brighter, stay the same, get dimmer, or go out? Explain
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