Which one is having lesser resistance a 60 watt bulb or 40 watt bulb?
Assuming both bulbs are designed to operate at the same voltage V, then it’s obvious that the higher the bulb’s power rating P, the lower its resistance R, thus the 60W bulb has a lower resistance than the 40W bulb.
Which bulb has greater resistance 40W or 60W when connected across the same supply?
since current is same we can say that power dissipation will be higher for the bulb with higher resistance i.e. 40W bulb. Hence 40W bulb will glow brighter in series connection. since voltage is same we can say that power dissipation will be higher for the bulb with lower resistance i.e. 60W bulb.
What is the resistance of 100 watt bulb?
144 ohms
Why does a bulb with higher resistance glow brighter?
Bulb with the more filament resistance glow brighter because bulb works on heating effect. Hence more the resistance more heat will be dissipated and bulb will glow brighter.
Which bulb is brighter 60W or 100w?
Answer: The bulb rated at 100 W will be brighter. When both bulbs are connected to the rated voltage, they will dissipate the rated power. The brightness of a bulb depends on the power it dissipates, so the 100 W bulb will be brighter than the 60 W bulb.
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 =v2/ P. 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 = I 2R.
How many 60W bulbs may be safely run on 220V using a 5A fuse?
18 bulbs
How many 60W bulbs may be safely run on 220V using a 6a fuse?
Considering the maximum natural number, we get the maximum number of bulbs that can be safely run across the 220V source is equal to 18 . Hence, the correct answer is option A.
How many 60W bulbs may be safely?
you can safely use number of 60W Bulb < 16 with 4 Amp. fuse. Remember “ Watt=Applied Voltage x current” i.e W=V x I (Amp.) Lamp 60 watts, 960/60 = 16 any more addition will exceed the fuse rating.
How many 60 W bulbs may be safely used in a 240v supply with 2a fuse?
So, number of bulbs required are 18.
What is the maximum number of 100 W bulbs all connected in parallel with a 220V power supply fitted with a 6a fuse?
What is the maximum number of 100 W (220 V) bulbs that can be safely used in the circuit ? Step by step solution by experts to help you in doubt clearance & scoring excellent marks in exams. Suppose x bulbs can be used safely. Thus, a maximum number of 11 bulbs can be used.
What is the maximum number of 60 W bulbs that can be run from the mains supply of 220 V if you do not want to overload a 5 a fuse?
Let the maximum number of bulbs be y. Power of y bulbs P=60y V=220V I=5A We know that P = VI 60y = 220 x 5 60y = 1100 y=18.33 So number of bulbs required are 18.
How many bulbs of 25 watt each can grow in a circuit of 250 volt and 5 ampere fuse?
Power = 25 watt. From this, you can glow 50 bulbs of 25 watts.
How much resistance does a 25 watt bulb have?
The relevant equation is Power = Voltage squared divided by resistance. So if the voltage is 230V and the power is 25 Watts, then the resistance will be 2116 Ohms.
How many 100 watt bulbs on the supply of 220 volts can be safely used with 5 ampere fuse?
11 bulbs
What is the ratio of resistance if two bulbs have rating of 40w 220V and 20w 110v?
The ratio of their resistance is 4. Given for bulb (a), P = 40 W and V = 220 V. Similarly for bulb (b), P =40 W and V = 110 V. Thus, it is clear from the result the for bulb (a)has a higher resistance.
How do you determine which bulb will fuse first?
In a series connection, the equipment with higher resistance have to bear more voltage. Thus, the 25W bulb will fuse first.