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a light bulb manufacture gaurentees

a light bulb manufacture gaurentees that the mean life of a certain type of bulb is at least 875 hours. A random sample of 40
1. 3 answers
2. asked by jamie
3. 651 views
a light bulb manufacture claims that the mean life of a certain type of light bulb is more than 750 hours
1. 1 answer
2. asked by k
3. 665 views
Two light bulbs are connected in series. The resistance of the filament of the first light bulb is 230Ω. The potential
1. 2 answers
2. asked by exo-L
3. 780 views
While shopping for light bulbs, which information would describe the efficiency of the bulb? (1 paint)how many watts of power
1. 1 answer
2. 48 views
You are in the lab with a 10 V battery. You have a 10 W light bulb and you want to put 1/2 A of current through the light bulb
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2. asked by jamie
3. 587 views
You are in the lab with a 10 V battery. You have a 10 W light bulb and you want to put 0.75 A of current through the light bulb
1. 1 answer
2. asked by michelle
3. 642 views
A light bulb is wired in series with a 133-Ω resistor, and they are connected across a 120-V source. The power delivered to the
1. 3 answers
2. asked by joe
3. 827 views
A light bulb is wired in series with a 142 resistor, and they are connected across a 120 V source. The power delivered to the
1. 1 answer
2. asked by Jiji
3. 874 views
A light bulb's brightness is reduced when placed behind a screen. The amount of visible light produced by the light bulb
1. 1 answer
2. 24 views
Light bulb packages will have at least two numbers on them; a power and what the potential difference across the bulb must be so
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2. asked by k
3. 1,156 views