Homework Answers
Note that a switch has to be closed to make a complete circuit in order for current to flow
When both switches are open, no current will flow, so no bulb will be on
when both switches are closed, both bulbs will on.
when switch 1 is open , 2 is closed, no bulb will be on because circuit is not closed
when switch 1 is closed, switch 2 is open, then one bulb will be on (most probably bulb B)
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2. Consider light bulbs A and B connected to a battery with voltage V and 2...
Three identical light bulbs labeled A, B and C are connected to a battery as shown...
Three identical light bulbs labeled A, B and C are connected to
a battery as shown in the circuit below. When the switch is closed,
which of the following statements is true about the
currentthrough the light bulbs?
A. No current flows through bulbs B and C because the B/C loop
does not contain a battery. Only A has a current running through
it.
B. The current through A is equal to the sum of the currents
through B...
1. Consider the circuit shown below which shows a battery connected to some resistors battery is...
1. Consider the circuit shown below which shows a battery connected to some resistors battery is along with some switches which will be toggled opened or closed at different times. The a15V battery. Resistor R1 is 100?, R2 is 200?, and Cl is 110 ?F, C2 is 80 ?F, and C3 is A stopwatch is started at time t1-0 ms. At that time, switch S1 is closed and all other switches are open and the capacitor is allowed to charge...
Question 5 1 pts Three identical light bulbs are connected to a battery as shown in...
Question 5 1 pts Three identical light bulbs are connected to a battery as shown in the circuit below. After the switch Sis closed, S L M light bulb N grows brighter. light bulb L grows dimmer. the power supplied by the battery increases. the current through the battery decreases.
7) Two light bulbs A and B are connected to a constant voltage source and an...
7) Two light bulbs A and B are connected to a constant voltage source and an open switch as shown in the figure. When the switch is closed, bulb B: a) Burns more brightly. b) Burns more dimly. ACO c) Acts like a capacitor d) Burns as brightly. BO e) Goes out [B 8) Two resistors are in parallel, one within each branch of a simple circuit. One resistor is 2200 Ohm and the other is 1100 Ohm. The current...
Four identical bulbs, each with a filament resistance of 65 Ω, are connected to a 30-V...
Four identical bulbs, each with a filament resistance of 65 Ω, are connected to a 30-V battery as shown in the diagram below. S1, S2, and S3 represent switches. (a) If S1 and S2 are closed while S3 is open, what is the current through each bulb? (b) If S3 is closed while S1 and S2 are open, what is the current through each bulb?
5. Circuit B has battery voltage Vo-9.0 Volts and three identical bulbs. With the switch open,...
5. Circuit B has battery voltage Vo-9.0 Volts and three identical bulbs. With the switch open, lamps 1 and 2 are in series, and the ammeter reads an initial current of 0.60 A. CirouitLamo 1 Lamp 1 (a) What will voltmeters V, and V2 read? Lamp 3 ) Lamp 2 (b) Determine the power in each lamp with the switch still open, as shown in the diagram. 2.7 w 2 2.7 (c) Now you close the switch so that lamps...
Two light bulbs are connected in parallel, and then connected to a battery, as shown in...
Two light bulbs are connected in parallel, and then connected to
a battery, as shown in Fig. 4.51(a). You observe that bulb 1 is
twice as bright as bulb 2. Assuming that the brightness of a bulb
is proportional to the power dissipated in the bulb’s resistor,
which bulb’s resistor is larger, and by what factor? The bulbs are
now connected in series ,as shown in Fig.4.51(b). Which bulb is
brighter, and by what factor? How bright is each bulb...
Four identical bulbs, each with a filament resistance of 132 Ω, are connected to a 35-V...
Four identical bulbs, each with a filament resistance of 132 Ω, are connected to a 35-V battery as shown in the diagram below. S1, S2, and S3 represent switches. (a) If S1 and S2 are closed while S3 is open, what is the current through each bulb? bulb 1 bulb 2 bulb 3 bulb 4 (b) If S3 is closed while S1 and S2 are open, what is the current through each bulb? bulb 1 bulb 2 bulb 3 bulb...
A 10-V-emf battery is connected in series with the following: a 2-uF capacitor, a 2- resistor,...
A 10-V-emf battery is connected in series with the following: a 2-uF capacitor, a 2- resistor, an ammeter, and a switch, initially open; a voltmeter is connected in parallel across the capacitor. After the switch has been closed for a relatively long period(several seconds, say) what are the current and capacitor voltage readings respectively
A 24-volt battery is connected to four 25-watt light bulbs in parallel. a. Draw a diagram...
A 24-volt battery is connected to four 25-watt light bulbs in parallel. a. Draw a diagram of this circuit b. Find the voltage across each light bulb c. Find the current in each light bulb d. Find the resistance in each light bulb
Three identical light bulbs labeled A, B and C are connected to
a battery as shown in the circuit below. When the switch is closed,
which of the following statements is true about the
currentthrough the light bulbs?
A. No current flows through bulbs B and C because the B/C loop
does not contain a battery. Only A has a current running through
it.
B. The current through A is equal to the sum of the currents
through B...
1. Consider the circuit shown below which shows a battery connected to some resistors battery is along with some switches which will be toggled opened or closed at different times. The a15V battery. Resistor R1 is 100?, R2 is 200?, and Cl is 110 ?F, C2 is 80 ?F, and C3 is A stopwatch is started at time t1-0 ms. At that time, switch S1 is closed and all other switches are open and the capacitor is allowed to charge...
Question 5 1 pts Three identical light bulbs are connected to a battery as shown in the circuit below. After the switch Sis closed, S L M light bulb N grows brighter. light bulb L grows dimmer. the power supplied by the battery increases. the current through the battery decreases.
7) Two light bulbs A and B are connected to a constant voltage source and an open switch as shown in the figure. When the switch is closed, bulb B: a) Burns more brightly. b) Burns more dimly. ACO c) Acts like a capacitor d) Burns as brightly. BO e) Goes out [B 8) Two resistors are in parallel, one within each branch of a simple circuit. One resistor is 2200 Ohm and the other is 1100 Ohm. The current...
5. Circuit B has battery voltage Vo-9.0 Volts and three identical bulbs. With the switch open, lamps 1 and 2 are in series, and the ammeter reads an initial current of 0.60 A. CirouitLamo 1 Lamp 1 (a) What will voltmeters V, and V2 read? Lamp 3 ) Lamp 2 (b) Determine the power in each lamp with the switch still open, as shown in the diagram. 2.7 w 2 2.7 (c) Now you close the switch so that lamps...
Two light bulbs are connected in parallel, and then connected to
a battery, as shown in Fig. 4.51(a). You observe that bulb 1 is
twice as bright as bulb 2. Assuming that the brightness of a bulb
is proportional to the power dissipated in the bulb’s resistor,
which bulb’s resistor is larger, and by what factor? The bulbs are
now connected in series ,as shown in Fig.4.51(b). Which bulb is
brighter, and by what factor? How bright is each bulb...
Four identical bulbs, each with a filament resistance of 132 Ω, are connected to a 35-V battery as shown in the diagram below. S1, S2, and S3 represent switches. (a) If S1 and S2 are closed while S3 is open, what is the current through each bulb? bulb 1 bulb 2 bulb 3 bulb 4 (b) If S3 is closed while S1 and S2 are open, what is the current through each bulb? bulb 1 bulb 2 bulb 3 bulb...
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