1. Quiz Friday on basic circuits taken from homework and class work
Test next Friday
Covering through electric circuits.
Practice exams are posted.

2. When two resistances are connected in series, the total resistance
a. is greater than the larger resistance.
b. is less than the smaller resistance.
c. is an inverse square relationship.
d. is directly proportional to the squares of the individual resistances.
e. is directly proportional to the square root of the sum of the squares of the individual resistances.

3. When two resistances are connected in parallel, the total resistance
a. is greater than the larger resistance.
b. is less than the smaller resistance.
c. is an inverse square relationship.
d. is directly proportional to the squares of the individual resistances.
e. is directly proportional to the square root of the sum of the squares of the individual resistances.

6. 1) Three 11. 0 Ω resistors are connected in series with a 24
1) Three 11.0 Ω resistors are connected in series with a 24.0 V battery. Find the following.
(a) the equivalent resistance of the circuit
(b) the current in each resistor

7. 1) Three 11. 0 Ω resistors are connected in parallel across the 24
1) Three 11.0 Ω resistors are connected in parallel across the 24.0 V battery. Find the following.
(a) the equivalent resistance of the circuit
(b) the current in each resistor

8. 2) Calculate the current in each resistor in the circuit below if a potential difference of 30.0 V is applied to the circuit. R is 20 ohms.

9. 1 = 2 = 3
1 = 2 > 3
1 = 2 < 3

10. Compare the brightness of each bulb.
a. 1 and 2 are the brightest b. 3,4,5 and 6 are the brightest c. 7 and 8 are the brightest d. They are all the same

11. The circuit contains four identical light bulbs in series with an ideal battery. A wire is then attached to points B and E.
Lamp 1
Gets brighter
Gets dimmer
Stays the same
Goes out completely

12. A wire is attached to points C and E
more current is drawn from the battery 
less current is drawn from the battery
the same current is drawn from the battery

13. A wire is attached to points C and E
the voltage across only lamp 1 increases
the voltage across lamps 3 and 4 increases
the voltage across lamp 2 decreases
the voltage across lamps 1 and 2 increases

14. A wire is attached to points C and E
the power delivered by the battery increases
the power dissipated by the circuit decreases   
the power delivered by the battery remains unchanged
the power dissipated by the circuit is halved