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Unformatted text preview: he resistance of the heating
coil?
• a. 7.5 Ω
• b. 9.0 Ω
• c. 11.0 Ω
• d. 13.0 Ω
5. To stun its prey, the electric eel generates a current of .8 Amp, applied across a
potential diﬀerence of 650V. How much energy is deposited by the eel in its victim
every 2 seconds?
• a. 130 J
• b. 260 J
• c. 520 J
• d. 1040 J
6. How much current ﬂows through the central resistor in Fig A shown above?
• a. .55 A
• b. .67 A
• c. .33 A
• d. 1.11 A
7. The resistors in the circuit shown in Fig B each have a resistance of 100 Ω. What is
the equivalent resistance of the circuit?
• a. 25 Ω 3
• b. 50 Ω
• c. 75 Ω
• d. 100 Ω
8. A 1 000V battery, a 3 000Ω resistor and a 0.50µF capacitor are connected in series
with a switch.The capacitor is initially uncharged. What is the value of the current
the moment after the switch is closed?
• a. 0. A
• b. .33 A
• c. .66A
• d. 3.0 A...
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 Winter '07
 BRIANKEATING
 Magnetism

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