# Physics Quiz 6

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1. The potential difference between the terminals of a battery, when no current flows to an external circuit, is referred to as the
emf
2. The potential difference between the terminals of a battery, when current flows to an external circuit, is referred to as the
terminal voltage
3. When two or more resistors are connected in series to a battery:the same current flows through each resistor, the equivalent resistance of the combination is equal to the sum of the resistance of each resistor, the total voltage across the combination is the algebraic sum of the voltages across the individual resistors, all of the above
all of the above
4. When resistors are connected in series,
the current flowing in each is the same
5. Three identical resistors are connected in series to a battery. If the current of 12 A flows fro the batter, how much current flows through any one of the resistors?
12 A
6. Three identical resistors are connected in series to a 12-V battery. What is the voltage across any one of the resistors?
4 V
7. You obtain a 100-W light bulb and a 50-W light bulb. Instead of connecting them in the normal way, you devise a circuit that places them in series across normal household voltage. Which statement is correct
The 50-W bulb glows more brightly than the 100-W bulb.
8. As more resistors are added in series to a constant voltage source, the power supplied by the source
decreases
9. When two or more resistors are connected in parallel to a battery: the voltage across each resistor is the same, the total current flowing form the battery equals the sum of the currents flowing through each resistor, all of the above.
All of the above
10. When resistors are connected in parallel, we can be certain that
the potential difference across each is the same
11. Three identical resistors are connected in parallel to a 12-V battery. What is the voltage of any one of the resistors.
12 V
12. Three identical resistors are connected in parallel to a battery. If the current of 12 A flows from the battery, how much current flows through any one of the resistors?
4 A
13. The lamps in a string of Christmas tree lights are connected in parallel. What happens if one lamp burns out? (assume negligible resistance in the wires leading to the lamps.)
The brightness of the lamps will not change appreciably.
14. As more resistores are added in parallel to a constant voltage source, the power supplied by the source
increases
15. Consider three identical resistors, each of resistance R. The maximum power each can dissipate is P. Two of the resistors are connected in series, and a thrid is connected in paralel with these two. What is the maximum power this network can dissipate?
3P/2
16. Kirchoff's loop rule is an example of
conservation of energy
17. Kirchhoff's junction rule is an example of
conservation of charge.
 Author: iishvo ID: 228110 Card Set: Physics Quiz 6 Updated: 2013-07-25 04:58:01 Tags: Quiz Folders: Description: Physics Show Answers: