A light bulb is connected to a 120.0-V wall socket. The current in the bulb depends...
A light bulb is connected to a 120.0-V wall socket. The current in the bulb depends on the time t according to the relation I = (0.781 A) sin [(205 rad/s)t]. (a) What is the frequency of the alternating current? (b) Determine the resistance of the bulb's filament. (c) What is the average power delivered to the light bulb?
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A light bulb is connected to a 120.0-V wall socket. The current
in the bulb depends...
Please make sure to answer A,B & C A light bulb is connected to a 120.0-V...
Please make sure to answer A,B & C A light bulb is connected to a 120.0-V wall socket. The current in the bulb depends on the time t according to the relation I = (0.717 A) sin [(328 rad/s)t]. (a) What is the frequency of the alternating current? (b) Determine the resistance of the bulb's filament. (c) What is the average power delivered to the light bulb?
4. Consider a 60W light bulb plugged into a 120V socket, and a 100W light bulb...
4. Consider a 60W light bulb plugged into a 120V socket, and a 100W light bulb plugged into another 120V socket Recall that a bulb's brightness is related to the amount of power (in watts) that is dissipated as heat and light. a Through which light bulb is more current passing? b. Which light bulb filament has more resistance? c. If these light bulbs were connected together in series into the same 120V outlet, which light bulb will be brighter?...
5. When a light bulb is connected to a 4.5 V battery, a current of 0.16A...
5. When a light bulb is connected to a 4.5 V battery, a current of 0.16A passes through the bulb filament. What is the resistance of the filament? What is the power delivered to the light bulb? (5pts)
The rms current through a light bulb is 0.466 A when the bulb is connected to...
The rms current through a light bulb is 0.466 A when the bulb is connected to a standard 120 V rms source. (a) Find the bulb's resistance. (b) Find the peak instantaneous current. (c) Find the peak instantaneous voltage. (d) Find the average electrical power used by the bulb.
A 15-W compact fluorescent light bulb is used in a lamp plugged into a 120-V wall...
A 15-W compact fluorescent light bulb is used in a lamp plugged into a 120-V wall socket. You can assume the lamp itself has zero resistance. Find (a) the resistance of the light bulb, (b) the maximum current through the bulb, and (c) the maximum power used by the light bulb. Also, if the frequency of the electricity is the typical household value of f = 60 Hz, what are the first two times that the current going through the...
A voltmeter connected across the terminals of a tungsten-filament light bulb measures 117 V when an...
A voltmeter connected across the terminals of a tungsten-filament light bulb measures 117 V when an ammeter in line with the bulb registers a current of 0.641 A. a) Find the resistance of the light bulb. (Enter your answer in ohms.) b) Find the resistivity of tungsten (in Ω · m) at the bulb's operating temperature if the filament has an uncoiled length of 0.593 m and a radius of 2.33 ✕ 10−5 m.
6. A light bulb is connected to a 40 V battery, as shown in the circuit...
6. A light bulb is connected to a 40 V battery, as shown in the circuit below. If the power used by the light bulb is 22 W, what is the bulb's resistance? E = 40 V R = ? A B C D E 2.04 2 0.55 22 0.037 32 72.722 0.014 22
- 2. 5 c) A light bulb draws a current of 12A when connected to a...
- 2. 5 c) A light bulb draws a current of 12A when connected to a 24-V battery. Find the bulb's resistance.
The bulb is not ohmic, must use "P=VI" for the first part. When a light bulb...
The bulb is not ohmic, must
use "P=VI" for the first part.
When a light bulb is connected to the simple circuit shown, it dissipates a power of 60.0 W. (a) Determine the possible values for the current in the circuit. (b) Suppose that the values of the resistor's resistance is varied without changing the bulb's rate of energy dissipation. What is the maximum resistance? (c) If instead the battery's terminal potential is varied without affecting the bulb's power, what...
A light bulb connected to a 9-V battery has a current of 1.5 A flowing. Find...
A light bulb connected to a 9-V battery has a current of 1.5 A flowing. Find the resistance of the light bulb (in ohms) Find the power drawn by the light bulb (in W)
4. Consider a 60W light bulb plugged into a 120V socket, and a 100W light bulb plugged into another 120V socket Recall that a bulb's brightness is related to the amount of power (in watts) that is dissipated as heat and light. a Through which light bulb is more current passing? b. Which light bulb filament has more resistance? c. If these light bulbs were connected together in series into the same 120V outlet, which light bulb will be brighter?...
5. When a light bulb is connected to a 4.5 V battery, a current of 0.16A passes through the bulb filament. What is the resistance of the filament? What is the power delivered to the light bulb? (5pts)
6. A light bulb is connected to a 40 V battery, as shown in the circuit below. If the power used by the light bulb is 22 W, what is the bulb's resistance? E = 40 V R = ? A B C D E 2.04 2 0.55 22 0.037 32 72.722 0.014 22
- 2. 5 c) A light bulb draws a current of 12A when connected to a 24-V battery. Find the bulb's resistance.
The bulb is not ohmic, must
use "P=VI" for the first part.
When a light bulb is connected to the simple circuit shown, it dissipates a power of 60.0 W. (a) Determine the possible values for the current in the circuit. (b) Suppose that the values of the resistor's resistance is varied without changing the bulb's rate of energy dissipation. What is the maximum resistance? (c) If instead the battery's terminal potential is varied without affecting the bulb's power, what...
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