Table of Contents
- 1 Which has more resistance 100w bulb or 25W bulb?
- 2 Which among a 25W bulb and a 40w bulb has a higher resistance?
- 3 Which has a higher resistance a 50 W lamp or a 25W 220 V lamp calculate the ratio of their resistances?
- 4 When a 25W 220v bulb and a 100w 220v bulb are connected in series then which bulb will glow brighter?
- 5 What is the resistance of a 25 watt light bulb?
- 6 How many bulbs of 25W 40W 60W and 100ware connected in series?
Which has more resistance 100w bulb or 25W bulb?
Hence, resistance will be more for the given which is dissipating less power. Resistance is more for 25 Watt bulb.
Which has a higher resistance a 50 watt lamp bulb or 25 watt lamp bulb and how many times?
Resistance R = V2/P, where V is the potential difference and P is the power in Watts. So, the more the power, the lower will be the resistance and vice versa. Or, R2 = 2R1. Thus, 25 W bulb will have double the resistance as compared to 50 Watt bulb.
Which among a 25W bulb and a 40w bulb has a higher resistance?
Power in Watt = Voltage^2 / Resistance. So 25 w bulb has higher resistance.
Which has a higher resistance a 50W lamp or a 25W 220V lamp calculate the ratio of their resistances?
Resistance of 25 W lamp bulb is twice the resistance of 50W lamp bulb.
Which has a higher resistance a 50 W lamp or a 25W 220 V lamp calculate the ratio of their resistances?
R2>R1, 25W bulb has higher resistance. Resistance of 25 W lamp bulb is twice the resistance of 50W lamp bulb.
Which has higher resistance 50W or 2.5 W?
R – 1/ r – 2 ⇒ 50 / 2.5 ⇒20 times. So 2.5 watts is 20 times more than 50 watts of bulb.
When a 25W 220v bulb and a 100w 220v bulb are connected in series then which bulb will glow brighter?
Since the bulbs are connected in series, the current through each bulb will be the same. Thus the power dissipated will be proportional to the resistance of each bulb. The bulb having more resistance will dissipate more power. Thus $25\;{\text{W}}$ bulb having more power will glow brighter.
When a 60W 220v bulb and a 100w 220v bulb are connected in parallel then which bulb will glow brighter?
The resistance of the bulb is given by R=V2P. So, the resistance of 60 W bulb is more than the resistance of 100 W bulb. When they are connected in series, the current through both bulbs is same. Hence 60 W bulb will be more brighter because P=I2R.
What is the resistance of a 25 watt light bulb?
In series the current through both the bulb will be same so the bulb with higher resistace will grow brighter i.e the 25 watt bulb. Light bulbs are made to operate at particular voltage range and each having particular power output. Similarly resistance of 100 watt bulb is 484 ohms.
Why does a 100 watt bulb glow brighter than a 25W bulb?
Hence more the voltage drop will be across 25W bulb the power consumed is high and the 25W bulb will glow brightly. The voltage across both the bulbs will be the same. More current flows through 100W bulb due to low resistance. The power consumed by 100W bulb is high and it will glow brightly.
How many bulbs of 25W 40W 60W and 100ware connected in series?
Four bulbs of 25W,40W,60Wand 100Ware connected in series and their combination is connected across a main power supply. Match the following list I with the potential difference across each bulb in List II List I List II (P) 25W (1) Highest potential differences (Q) 100W (2) Second highest potential difference (R) 60W
How do you find the resistance of an incandescent lamp?
Very simple. Assuming the question is on DC circuit, watt = volt x Amp, now we have volt and watt, find amps,, R = V÷I ,, 110 ÷ 0.9 = 122 ohms. So incandescent lamp resistance is 122 ohms.