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.
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The rms current through a light bulb is 0.466 A when the bulb is
connected to...
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?
- 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.
A "120-watt" lightbulb uses an average power of 120 W when connected to an rms voltage...
A "120-watt" lightbulb uses an average power of 120 W when connected to an rms voltage of 120 V. What is the resistance of the lightbulb? What is the maximum current in the bulb? What is the maximum power used by the bulb at any given instant of time?
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?
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...
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
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 operating potential difference of a light bulb is 120 V. The power rating of the...
The operating potential difference of a light bulb is 120 V. The power rating of the bulb is 90 W. (a) Find the current in the bulb. A (b) Find the bulb's resistance.
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 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.
- 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...
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
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)
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