Answer:
60w
is having lesser resistence.
Which one is having lesser resistance a 220 volt 60 watt bulb or a 220 volt 40 watt bulb?
if v is constant. Hence
bulb of higher voltage
will have less resistance. In other words, resistance of 60W bulb is less than the resistance of 40W bulb.
Which one is having lesser resistance a 220 volt 100 watt bulb or 220 volt 20 watt bulb give reason?
Answer: The 220V, 60W bulb
has more resistance
. R = 220*220/100 = 484ohm (approx.) So, Case 2 has more resistance.
Which one will have lesser resistance?
Since, power is inversly propotional to resistance. Therefore,
60 watt bulb with more power
will have less resistance.
Which has more resistance a bulb of 60W at 220 V or 40W at 220 V?
Thus,
60W,220V
will have greater resistance.
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 has a greater resistance a 60 watt bulb or a 40 watt bulb?
Resistance and power are inversely proportional to each other. So,
lamp powered 40 W
has more resistance than a 60 W lamp.
Which is having more resistance 220 volt 100 watt bulb or a 220 volt 60 watt bulb?
So bulb-1 consumes more power while connected to the same supply of 220 volt that means current through bulb-1 is more then the resistance of the bulb-1 is low. Power is inversely proportional to the resistance. So
60 W bulb has more
resistance.
Which is having more resistance a 220V 100W bulb or a 220V 60W bulb calculate?
Thus,
60W,220V
will have greater 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.
What is the unit of resistivity?
The unit of resistance is the ohm. In the metre-kilogram-second (mks) system, the ratio of area in square metres to length in metres simplifies to just metres. Thus, in the metre-kilogram-second system, the unit of resistivity is
ohm-metre
.
What is the ratio of the resistance if two bulbs have ratings 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.
When a 60W 220V bulb and a 100W 220V bulb are connected in series 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 = I2R
.
Which bulbs has least resistance 25w 60W and 100W?
Answer:
100W
has least resistance.
What is the resistance of a 40 watt bulb?
Since power, P, equals iV, P/V = i, so at 120 V, a 40-watt bulb draws 1/3 A. (The units in iV are (C/s)(N-m/C), or J/s, which are watts.) For a given resistance, V = iR, so the bulb’s resistance (when it has 120 volts across it) is 120/(1/3), or
360 ohms
.
What is the resistance of a 60 watt light bulb?
In fact, the 120-Watt bulb would have a current of 1 Amp and a resistance of 120 Ω; the 60-Watt bulb would have a current of 0.5 Amp and a resistance of
240 Ω
.
