A 0.20 Ω bulb is connected to a 12-volt power supply. The power used by an...
A 0.20 Ω bulb is connected to a 12-volt power supply. The power used by an element in a circuit can be calculated with P = I2 R , where I is the current through the element and R is the resistance of the element.
(a) What is the power delivered to the bulb in W?
(b) What is the total power delivered by the battery in W?
Homework Answers
I = V/R = 12 V / 0.20 ohm = 60 A
(A) P delivered = I^2 R = (60^2)(0.20) = 720 W
(B) by battery = V I = (12 V) (60 A) = 720 W
Add Answer to:
A 0.20 Ω bulb is connected to a 12-volt power supply. The power
used by an...
A 0.20 Ω bulb is connected to a 15-volt power supply. The power used by an...
A 0.20 Ω bulb is connected to a 15-volt power supply. The power used by an element in a circuit can be calculated with P = I2R, where I is the current through the element and R is the resistance of the element. (a) What is the power delivered to the bulb? _________W (b) What is the total power delivered by the battery? __________ W
A 12-volt battery is connected to two light bulbs, as drawn in Figure 1. Light bulb...
A 12-volt battery is connected to two light bulbs, as drawn in
Figure 1. Light bulb 1 has resistance 3 ohms, while light bulb 2
has resistance 6 ohms. The battery has essentially no internal
resistance, and all the wires are essentially resistanceless,
too.
When a light bulb is unscrewed, no current flows through that
branch of the circuit. For instance, if light bulb 2 is unscrewed,
current flows only around the lower loop of the circuit, which
consists of...
Four resistors are connected to a battery with a terminal voltage of 12 V, as shown...
Four resistors are connected to a battery with a terminal
voltage of 12 V, as shown in the figure below. (Assume
R1 = 31.0 Ω and R2 = 70.0
Ω.)
(a) How would you reduce the circuit to an equivalent single
resistor connected to the battery? Use this procedure to find the
equivalent resistance of the circuit.
Ω
(b) Find the current delivered by the battery to this equivalent
resistance.
A
(c) Determine the power delivered by the battery.
W...
A 13 Volt power supply is connected to two resistors in series of resistance R1 =...
A 13 Volt power supply is connected to two resistors in series of resistance R1 = 127 ohms and R2 = 585 ohms. What is the current through the circuit in mA (milli-Amps)?
Four resistors are connected to a battery with a terminal voltage of 12 V, as shown in the...
Four resistorsare connected to a battery with a terminal voltage of 12 V, as shown in the figure below. Use the following variables as necessary: R1 = 34.0 Ω and R2 = 85.0Ω.(a) How would you reduce the circuit to an equivalent single resistor connected to the battery? Use this procedure to find the equivalent resistance of thecircuit.________ Ω(b) Find the current delivered by the battery to this equivalent resistance.________ A(c) Determine the power delivered by the battery.______ W(d) Determine...
A light bulb and a resistor are connected in series to a variable power supply. A...
A light bulb and a resistor are connected in series to a variable power supply. A student first connects a voltmeter and an ammeter to measure the current through and the voltage across the bulb, as shown in the left circuit below. The student varies the power supply voltage and records the readings on the meters. Power Supply Power Supply The student then places the voltmeter across the resistor as shown in the right circuit above, and repeats the experiment....
1. A battery is connected to a light bulb, lighting the bulb. Where in the circuit...
1. A battery is connected to a light bulb, lighting the bulb. Where in the circuit is the current the greatest? A) inside the battery B) it's the same at all these points C) inside the light bulb filament D) between the light bulb and the negative terminal of the battery E) between the positive terminal of the battery and the light bulb 2. The emf of a battery is: A) its internal resistance B) the voltage difference it provides...
A car battery has an emf of 12.0 V and an internal resistance of 0.20 Ω....
A car battery has an emf of 12.0 V and an internal resistance of 0.20 Ω. While the car is running, the resistance of the rest of the car (the “load” resistance) is 1.00 Ω. What is the current through the battery? What is the terminal voltage of the battery? What is the power delivered to the rest of the car? What is the power dissipated as heat by the internal resistance of the battery?
a.When two resistors RA and RB are combined in series and connected to a battery it...
a.When two resistors RA and RB are combined in series and connected to a battery it is observed that the ratio of the power dissipated in RA to that dissipated in RB is equal to 10. If this arrangement is dismantled and the same two resistors connected in parallel to the same battery, what is the ratio of the power dissipated in RA to that dissipated in RB in this new circuit? b.How much energy is converted by a 12...
A 9.0-Ω resistor and a 6.0-Ω resistor are connected in parallel across a power supply, and...
A 9.0-Ω resistor and a 6.0-Ω resistor are connected in parallel across a power supply, and the current through the 9.0-Ω resistor is found to be 0.25 A. Find the voltage setting of the power supply. A series RC circuit for which C = 6.0 μF, R = 2.0 × 106 Ω, and ε = 20 V. Find the maximum charge on the capacitor after a switch in the circuit is closed.
A 12-volt battery is connected to two light bulbs, as drawn in
Figure 1. Light bulb 1 has resistance 3 ohms, while light bulb 2
has resistance 6 ohms. The battery has essentially no internal
resistance, and all the wires are essentially resistanceless,
too.
When a light bulb is unscrewed, no current flows through that
branch of the circuit. For instance, if light bulb 2 is unscrewed,
current flows only around the lower loop of the circuit, which
consists of...
Four resistors are connected to a battery with a terminal
voltage of 12 V, as shown in the figure below. (Assume
R1 = 31.0 Ω and R2 = 70.0
Ω.)
(a) How would you reduce the circuit to an equivalent single
resistor connected to the battery? Use this procedure to find the
equivalent resistance of the circuit.
Ω
(b) Find the current delivered by the battery to this equivalent
resistance.
A
(c) Determine the power delivered by the battery.
W...
A light bulb and a resistor are connected in series to a variable power supply. A student first connects a voltmeter and an ammeter to measure the current through and the voltage across the bulb, as shown in the left circuit below. The student varies the power supply voltage and records the readings on the meters. Power Supply Power Supply The student then places the voltmeter across the resistor as shown in the right circuit above, and repeats the experiment....
Most questions answered within 3 hours.
-
A heavy man’s resting weight is 1029 N. He is standing on a
scale on an...
asked 2 minutes ago -
Law can create or perpetuate health-harming social conditions.
True /False?
asked 2 minutes ago -
The following reaction describes the oxidation of
pyrite (FeS2) by oxygen in the presence of water:...
asked 10 minutes ago -
Schedule of Cash Collections of Accounts Receivable Pet Stop
Inc., a pet wholesale supplier, was organized...
asked 9 minutes ago -
Imagine you own a restaurant. Sales are a little slow during the
week, so you decide...
asked 16 minutes ago -
Question 1 (1 point)
Suppose the Federal Aviation Administration (FAA) would like to
compare the on-time...
asked 19 minutes ago -
Case 4 Title: Leslie Products Leslie Products LLC was formed by
Marshall classmates Leslie Paulson and...
asked 33 minutes ago -
Consider a drug that is used to help prevent blood clots in
certain patients. In clinical...
asked 1 hour ago -
A calorimeter is a container that is insulated from the outside,
so a negligible amount of...
asked 1 hour ago -
Churchill Bank has reserves of $100mn and loans to clients of
$500mn. In addition, it has...
asked 56 minutes ago -
Assume momentum is conserved in this case. Cart A of unknown
mass is moving on a...
asked 1 hour ago -
Telbus is an American telecommunications company that provides
voice, video, data, internet communications and professional
services...
asked 1 hour ago