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Why must there be two connections to a batter and to a light bulb?
Wiki User
∙ 7y ago
The electrons must go from the battery to the light-bulb, then come back again to the battery through the other connection. If there is only one connection, there will soon (within microseconds or so) be an accumulation of electrons that will repel any additional electrons - the current will stop flowing.
Wiki User
∙ 7y ago
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Is the light from an incandescent lamp monochromatic?
No, an incandescent bulb i.e. a bulb that emits light by the generation of heat, emits white light and is therefore not monochromatic. For a source to be monochromatic, the light emitted must be of a single wavelength.
A light bulb is set in the bottom of a 3m-deep swimming pool. What is the diameter of the circle of light seen on the water?
As an ordinary light bulb will illuminate the whole pool, not just a circle you must be thinking of a spotlight bulb. The answer will depend on how tightly focused the spotlight is.
A light bulb is hanging in the first floor of the room There are three switches in the ground floor room One of these switches belongs to that light bulb The light bulb is not lit and the switches?
All the switches to be tried first. 2 out of 3 must be switches of the ground floor room. So which ever doesn't work for the ground floor electronics must be first floor bulb switch J
What will happen if this 4.5 v bulb is connected to a 1.5 v cell?
The bulb need the correct voltage to operate. Your bulb would light if it is a 1.5 volt light. So the voltage of the supply and the light must be matched. Too little voltage won't light the light, too much will light it too much and blow it up.
What parts of a light bulb are conductors or insulators?
The conductors are the two wires you see supporting the filament. The glass supporting all this is an insulator. The metal ring around the base and the very bottom of the bulb conduct the electricity into the bulb. The plastic between them is an insulator. --- In incandescent bulbs, the filament of the bulb is a conductor, but has a high resistance to the flow of current, causing it to heat up and glow. In fluorescent bulbs, the gas in the tube resists the flow and is ionized. The ultraviolet photons that it gives off cause the inside of the tube (coated with phosphors) to glow.
What does the intensity of light bulb indicate?
It indicates that the light bulb must be high of voltage trough the current......
How long does a mood light last?
The mood light will last as long as the bulbs life, which has a lifetime of an average household light bulb. once the bulb burns out, one must replace the bulb with another mood light bulb.
How do you change the back headlight?
To change one's back headlight, one must first uncover the light bulb. Then one must unscrew the bulb. One must have another bulb to change the headlight. Screw in the new bulb.
Based on what you have seen what must be true for a circuit to light a bulb?
There must be a current through the bulb in order for it to glow.
What simple machines makes up the base of a light-bulb?
The bottom of a light bulb is a screw.
Is the light from an incandescent lamp monochromatic?
No, an incandescent bulb i.e. a bulb that emits light by the generation of heat, emits white light and is therefore not monochromatic. For a source to be monochromatic, the light emitted must be of a single wavelength.
Can fruit power light a bulb?
nope but a potatoe can im not sure its a fruit
How do you replace a brake light bulb in 2003 Honda Accord?
1. Open the truck and remove tail light compartment cover located at left/right up corners. 2. There will be two light bulbs: the one located on top is the brake light bulb and the lower one is for the backup light. 3. Twist the light socket and pull the light socket out; pull the broken light bulb out of the light socket and plug the new light bulb in (must get a right light bulb from auto parts store) 4. Test the new light bulb and put the compartment cover back on.
A light bulb is set in the bottom of a 3m-deep swimming pool. What is the diameter of the circle of light seen on the water?
As an ordinary light bulb will illuminate the whole pool, not just a circle you must be thinking of a spotlight bulb. The answer will depend on how tightly focused the spotlight is.
What simple machines make up the base of a light bulb?
The simple machine that makes up the base of a light-bulb is just a screw. That screw allows you to insert the light-bulb into the base of a lamp. You must make sure to get the grooves of the screw lined up to properly tighten the bulb into place.
What must be true for a circuit to light a bulb?
look in google ( this advice will really help )
A light bulb is hanging in the first floor of the room There are three switches in the ground floor room One of these switches belongs to that light bulb The light bulb is not lit and the switches?
All the switches to be tried first. 2 out of 3 must be switches of the ground floor room. So which ever doesn't work for the ground floor electronics must be first floor bulb switch J
