What happens to the brightness of light bulb emitted by a light bulb when the current in it increase?
If you increase the current in an ordinary incandescent light bulb, the light bulb will get brighter.
It gets brighter (at least until it burns out)
It depends what is the outcome of burning. If that light has created open circuit, circuit will break and there will not be any current. But if there is short circuit means overall resistance is decreased. Thus current will increase. Besides overall brightness will also increase. Thus, if in a series lesser the number of bulbs more will be brightness.
As current increases, the electromagnet strength will increase.
The hotter the star, the brighter. Ex: A stove
Current will increase.
If the resistance of the circuit remains same then current increases with increase in voltage.
The field reverses to increase the current.
"nothing happens" the brightness of the bulb is depends on the voltage since more bulb are added in the parallel circuit voltage remain same but the current drawn will increase with no of bulb added.. in practical house wiring has the same case..... you can observe easily.
If current increases, then voltage also has to increase, assuming that resistance stay relatively the same. Power will also increase. Since power is the product of voltage and current, then the power increase would be the square of the voltage or current change.
When you increase the voltage of a ckt. the current and consequently the power output of the ckt. will also increase.
What happens to the rotor speed and rotor current when the mechanical load on an induction motor increase?
rotor speed will decrease....the rotor current wil increase.....
With a constant voltage and increase in wire length will increase the end to end resistance and therefore the current will decrease.
An increase in current will only affect resistance if it causes the temperature of the conductor to change. For pure metallic conductors, and increase in temperature will cause an increase in resistance.
what happens is as you add more light bulbs the brightness begins to dim.This is because the bulbs are sharing power from the same source. If you want to make the bulbs brighter you must increase the amount of cells in the circuit;hope this helps.
Current will increase under those conditions.
They dim as the total resistance of series of resistances is the sum of the resistances; and current = V/R.
as you increase current, the number of electrons being produce by the cathode(filament) will also increase. e.g doubling the current(mA) will double the number of electrons being produced.
Ohm's Law: Current = Voltage divided by Resistance, so, if you increase resistance, then current decreases.
What happens during fluorescence to the energy which gets absorbed but not emitted as fluorescence by the atom?
If energy is absorbed but not emitted as fluorescence it may: increase the energy of the molecules - manifest as an increase in temperature use the energy to power a chemical reaction - manifest as a change in composition release the energy at a wavelength other than that being observed for fluorescence.
A: assuming a infinite current source the current will increase accordingly
P = V * I. If power remains constant, then as voltage decreases, current will increase.
current is decreased Depends of the circuit or device: in a stepdown transformer: power in= power out, V x I = V x I , Increase voltage in (power remaining constant) you current output will increase.
Other things being equal, at higher temperatures the star will be brighter. The total amount of energy emitted is proportional to the fourth power of the absolute temperature (for example, the temperature on the Kelvin scale).
Ohm's law: Voltage equals current times resistance. This means that if you increase the current through a resistor, the voltage drop across the resistor must also increase.
Assuming the voltage is constant, the current will increase. This is given by Ohm's Law: V=iR
It burns hotter, with some amount of increase in brightness. Most power in an incandescent light bulb is heat, not light.
light is emitted light is emitted
Depends on the capacity of the power supply. If the power supply can push enough amps nothing will happen to the brightness. If the power supply is inadequate, each lamp will dim a little. Comment Power supplies don't 'push' current into a circuit; current is 'drawn' from the supply to the load.
What happens to the total current provided by the battery as more bulbs are added to the parallel circuit?
For the case of an ideal battery, the total current will increase.
Nothing happens to the current, it remains the same. The capacity is increased as the capacity of said batteries is added together. To increase the flow of current you need an increase in voltage or a decrease in resistance. By connecting the batteries in a series instead of in parallel, Their voltage is added together instead. In this situation the capacities are not added together.
Assuming no change in the resistance of the circuit, the current must increase if the voltage drops, and the current must decrease if the voltage increases.
Since Voltage equals Current times Resistance then the voltage increases with an increase in resistance if the current remains constant.
If the load resistance is constant, then increasing the voltage will increase the current by the same proportion -i.e. doubling the voltage will double the current.
ohm law when the voltage circuit increases the circuit current is atomaticle increase but the resistance is concant'
In a series circuit what happens to the current if you increase the number of components in the circuit?
i dont know but it probley is something
That happens when the appliance supplied by the outlet is switched off.
If you increase the voltage V, also the current I must go up. R = V / I. The ratio of the resistance stays constant. Scroll down to related links and look at "Ohm's Law".
Ohm's Law says Voltage = Current x Resistance With constant voltage, an increase in resistance decreases the current. Now the load can be added in two basic ways. If the load is added in series the resistance will increase. If you add load in parallel the resistance will decrease and the current will increase from the source.
Power = voltage * current * cos (power factor); So if voltage increases, and current stays unchanged, power usage will also increase in proportion. A: Power is a factor of voltage and current therefore the power will increase if one or both are increased
By increasing the magnification the focus is increasing on a particular area due to which the no of light rays which were before more on the entire slide is now decreased due to focusing (magnifying) hence the brightness decreases due to decreased in no of light rays present in that small area
Ohm's law. I = E/R. The current is directly proportional to the applied EMF and inversely proportional to the resistance of the circuit.
Using ohms law: I = V/R Assuming voltage is constant. Therefore, if you increase resistance, current decreases.
The brightness of star will decrease as you observe it from farther away.
The voltage is going to increase as well following ohms law ( that is current is directly proportional to the applied voltage) Answer The voltage will probably remain constant. For example, if the resistance of a circuit falls in value, then the current will increase -but the voltage will be unaffected and remain constant.
What happens to the cut off voltage if the brightness of the light is increased in a photoelectric cell?
The cutoff voltage depends on the maximum kinetic energy of the emitted electrons. The brighter the light the more photons released. which means more electrons released. each photon will release an electron with the same maximum kinetic energy whether the light is bright or dim. therefor the cutoff voltage remains the same if the brightness is increased
When the resistance decreases the current of the circuit is increases to maintain the voltage constant ANSWER: The current increases Current does not keep voltage stable if resistance is reduced. And current does not increase resistance except as a function of heat generated
A photon is emitted.
A: If put in series current will decrease if put in parallel current will increase assuming the input voltage remains the same
If you add more cells in series with the bulbs, the current will increase as the voltage across the bulbs increases. If you add more cells in parallel with the bulbs, the current will stay the same because the voltage of the cells does not increase when they are added in parallel.
Ohm's law: Voltage = Amperes * Ohms If you hold one of current or voltage constant, then increasing resistance would decrease current (holding voltage), or increase voltage (holding current).