Which has higher resistance 50 Watt or 25 Watt?
As R=V2/P,R∝1/P. Thus, a25W lamp has double the resistance of a 50W lamp.
Which has a higher resistance A 50W 220v lamp or a 25W 220v lamp?
Under a constant fixed applied voltage V R2>R1 25W bulb has higher resistance. Resistance of 25 W lamp bulb is twice the resistance of 50W lamp bulb.
Which has more resistance 100w or 25W?
ANSWER: 25W has the highest resistance.
Which has more resistance 100w bulb or 60w bulb?
A 60-watt bulb has a higher electrical resistance than a 100-watt bulb. Because power is inversely proportional to resistance, when the power is less, the resistance is high.
Which has higher resistance of 50 volt?
∴ bulb with more power (i.e, 50watt) has more resistance and 50/2 = 2 times more…..
Which has higher resistance a sow bulb or a 2.5 W bulb and how many times?
⇒ Which has higher resistance and by how much ? R – 1/ r – 2 ⇒ 50 / 2.5 ⇒20 times.
Which of two light bulbs 25w or 60W has the higher resistance which one draws the most current which one uses the most energy?
Let us compare a 25-W bulb with a 60-W bulb. (See Figure 1(a).) Since both operate on the same voltage, the 60-W bulb must draw more current to have a greater power rating. Thus the 60-W bulb’s resistance must be lower than that of a 25-W bulb.
Which is having more resistance a 220V 100W bulb or a 220V 60W bulb?
Answer: The 220V, 60W bulb has more resistance. R = 220*220/100 = 484ohm (approx.) So, Case 2 has more resistance.
Which has more resistance 100W bulb or 40w bulb justify?
For a give voltage V, P is inversely proportional to R. So the 60 W bulb will have more resistance than the 100 W bulb.
Which has a larger resistance a 25 W lightbulb or a 60 W lightbulb when the voltage is constant )?
Since both operate on the same voltage, the 60-W bulb must draw more current to have a greater power rating. Thus the 60-W bulb’s resistance must be lower than that of a 25-W bulb.
Which bulbs will have high resistance?
If the voltage of two bulbs is assumed to be the same, the resistance of the bulbs equals to V/100 and V/60 respectively. Thus, it is proved that the 60W bulb has higher resistance than the 100W bulb.
Does higher wattage mean more resistance?
A higher watt bulb allows more electricity through, therefore the resistance must be lower.
Which has a lower resistance 25w bulb or 60W bulb?
In this case, only when more current flows through the bulb will the power or wattage of the bulb will increase. Therefore, more the wattage, lesser the resistance. Here we do not consider whether they are serially or parallely connected. Hence, the 60 W bulb has the lowest resistance.
When a 60W 220v bulb and a 40W 220v bulb are connected in series then which bulb will glow brighter?
Always, when two bulbs of the same voltage and different wattages are connected in series, the lower wattage bulb will glow brighter. … There is no question that the 40w bulb has a higher resistance than the 60w bulb; so the 40w bulb will dissipate more wattage and therefore be brighter.
What is the resistance of a bulb at 500w 220v?
The resistance of the electric bulb is 484 ohms.
Which has a larger resistance A 60 W?
With the same current, the bulb with the bigger resistance will dissipate more power. Since the 60 W bulb has the larger resistance, it will be brighter.
Which of the following bulbs will have least resistance?
Application: Voltage rating of all the lamps is the same. So, the lamp with the highest power rating offers the least resistance. 200 W, 220 V lamp offers the least resistance.
Which light bulbs are brighter?
The bulb which dissipates more power will glow brighter. In series, both bulbs have the same current flowing through them. The bulb with the higher resistance will have a greater voltage drop across it and therefore have a higher power dissipation and brightness.