Which of the two cases shown has the smaller equivalent resistance between points a and b

1
Q26.1
Which of the two cases shown has the smaller
equivalent resistance between points a and b?
1. Case 1 2. Case 2 3. the equivalent
resistance is the same in both cases 4. answer
depends on the values of the individual
resistances R1, R2, and R3
2
A26.1
Which of the two cases shown has the smaller
equivalent resistance between points a and b?
1. Case 1 2. Case 2 3. the equivalent
resistance is the same in both cases 4. answer
depends on the values of the individual
resistances R1, R2, and R3
3
Q26.2
A 120-V, 60-W light bulb, a 120-V, 120-W light
bulb, and a 120-V, 240-W light bulb are connected
in series as shown. If the voltage between points
a and b is 120 V, through which bulb will there
be the greatest voltage drop?
1. the 120-V, 60-W light bulb 2. the 120-V, 120-W
light bulb 3. the 120-V, 240-W light bulb 4. all
three light bulbs have the same voltage drop
4
A26.2
A 120-V, 60-W light bulb, a 120-V, 120-W light
bulb, and a 120-V, 240-W light bulb are connected
in series as shown. If the voltage between points
a and b is 120 V, through which bulb will there
be the greatest voltage drop?
1. the 120-V, 60-W light bulb 2. the 120-V, 120-W
light bulb 3. the 120-V, 240-W light bulb 4. all
three light bulbs have the same voltage drop
5
Q26.3
A 120-V, 60-W light bulb, a 120-V, 120-W light
bulb, and a 120-V, 240-W light bulb are connected
in parallel as shown. If the voltage between
points a and b is 120 V, through which bulb will
there be the greatest voltage drop?
1. the 120-V, 60-W light bulb 2. the 120-V, 120-W
light bulb 3. the 120-V, 240-W light bulb 4. all
three light bulbs have the same voltage drop
6
A26.3
A 120-V, 60-W light bulb, a 120-V, 120-W light
bulb, and a 120-V, 240-W light bulb are connected
in parallel as shown. If the voltage between
points a and b is 120 V, through which bulb will
there be the greatest voltage drop?
1. the 120-V, 60-W light bulb 2. the 120-V, 120-W
light bulb 3. the 120-V, 240-W light bulb 4. all
three light bulbs have the same voltage drop
7
Q26.4
Three identical light bulbs are connected to a
source of emf as shown. Which bulb is brightest?
1. light bulb A 2. light bulb B 3. light bulb
C 4. both light bulbs B and C (both are equally
bright and are brighter than light bulb A) 5. all
bulbs are equally bright
8
A26.4
Three identical light bulbs are connected to a
source of emf as shown. Which bulb is brightest?
1. light bulb A 2. light bulb B 3. light bulb
C 4. both light bulbs B and C (both are equally
bright and are brighter than light bulb A) 5. all
bulbs are equally bright
9
Q26.5
You wish to study a resistor in a circuit. To
simultaneously measure the current in the
resistor and the voltage across the resistor, you
would place
1. an ammeter in series and an voltmeter in
series 2. an ammeter in series and an voltmeter
in parallel 3. an ammeter in parallel and an
voltmeter in series 4. an ammeter in parallel and
an voltmeter in parallel
10
A26.5
You wish to study a resistor in a circuit. To
simultaneously measure the current in the
resistor and the voltage across the resistor, you
would place
1. an ammeter in series and an voltmeter in
series 2. an ammeter in series and an voltmeter
in parallel 3. an ammeter in parallel and an
voltmeter in series 4. an ammeter in parallel and
an voltmeter in parallel
11
Q26.6
A battery, a capacitor, and a resistor are
connected in series. Which of the following
affect(s) the maximum charge stored on the
capacitor?
1. the emf e of the battery 2. the capacitance C
of the capacitor 3. the resistance R of the
resistor 4. both e and C 5. all three of e, C,
and R
12
A26.6
A battery, a capacitor, and a resistor are
connected in series. Which of the following
affect(s) the maximum charge stored on the
capacitor?
1. the emf e of the battery 2. the capacitance C
of the capacitor 3. the resistance R of the
resistor 4. both e and C 5. all three of e, C,
and R
13
Q26.7
A battery, a capacitor, and a resistor are
connected in series. Which of the following
affect(s) the rate at which the capacitor charges?
1. the emf e of the battery 2. the capacitance C
of the capacitor 3. the resistance R of the
resistor 4. both C and R 5. all three of e, C,
and R
14
A26.7
A battery, a capacitor, and a resistor are
connected in series. Which of the following
affect(s) the rate at which the capacitor charges?
1. the emf e of the battery 2. the capacitance C
of the capacitor 3. the resistance R of the
resistor 4. both C and R 5. all three of e, C,
and R