Which one has a higher electrical resistance: a 100 watt bulb or a 60 watt bulb? - India Site (2024)

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Which one has a higher electrical resistance: a 100 watt bulb or a 60 watt bulb? - India Site? ›

The 60 watt bulb has a higher electrical resistance.

Because we know that power is inversely related to resistance, a 60 watt bulb has a larger electrical resistance than a 100 watt bulb.

A 60 W lightbulb has a resistance of 240 Ω. You can get this value by solving the for R in the equation P=V2/R, where P is the nominal power of 60 Watts, and V is the nominal voltage of 120 Volts.

The resistance of a 50 watt bulb is higher than that of a 100 watt bulb when both are operated at the same voltage. This is because the lower power bulb must draw less current and thus, by Ohm's law, has a higher resistance.

The 60 W bulb has a higher resistance, so it would be brighter.

The formula for power is given by p=v²/r. Thus power is inversely proportional to the resistance . The resistance of 60w is more as compared 100w bulb and must be supply by the same voltage.

So, substitute P=100 watts and ${V_{rms}}$=220 volts in the formula $P = \dfrac{{{V^2}_{rms}}}{R}$ to determine the resistance of the bulb. Hence, the resistance of the bulb is 484 ohms.

A typical incandescent 60 watt bulb, for instance has a cold resistance of about 30 ohms, and a hot resistance of about 240 ohms. As the bulb gets hotter, the resistance increases.

The resistance of the bulb is found theoretically using the formula R=V2/P R = V 2 / P . In this demonstration we measure the resistance of such a bulb using a multimeter and compare measured value with the theoretically calculated value. The results give an insight into the temperature dependence of resistance.

Watts define how much power the light uses to make light. In a typical 'old-fashioned' incandescent light bulb you'd buy for a dollar at the hardware store, a “100 Watt” bulb will produce on average 1200 (typically 1100-1300) lumens. Lumens are the measurement of quantity of light produced by a light bulb.

Which has the higher resistance a 100 W lightbulb or a 75 W bulb? ›

When connected to the same potential difference, the 100-W bulb will draw more current (P = IV). The 75-W bulb has the higher resistance (V = IR or P = V²/R).

From the above relation, it is clear that electric power is inversely proportional to the resistance i.e. more is the resistance less will be the power and vice-versa. Thus 200 W bulb will have less resistance as compared to 100 W and will glow brightly.

Power, P∝1R∴ One with lower power rating will have higher resistance. So, 25W will have more resistance.

A 100 watt bulb is much brighter and hotter than a 60 watt bulb. Light bulb wattage is a measure of power consumption. The higher the number, the more electricity it uses. Incandescent bulbs create light by heating the filament with electricity just like your toaster only much hotter.

The formula for power is given by p=v²/r. Thus power is inversely proportional to the resistance . The resistance of 60w is more as compared 100w bulb and must be supply by the same voltage.

The answer is that in (a), the potential across the bulbs is the same but the current through the 100W bulb is greater (since its resistance is smaller than the 40W bulb).

The difference between 60W and 100W cables comes down to their charging and data transfer speeds. A 100W cable can charge devices faster than a 60W cable. The reason for this is that a 100W cable can handle more current, allowing it to charge devices faster.

A 100 watt bulb is much brighter and hotter than a 60 watt bulb. Light bulb wattage is a measure of power consumption. The higher the number, the more electricity it uses. Incandescent bulbs create light by heating the filament with electricity just like your toaster only much hotter.

Voltage is different in both the bulbs as they are connected in series. A 60-watt bulb has less power value than a 100-watt bulb. This means the resistance of a 60-watt bulb is more than compared of a 100-watt bulb.

Changing the resistance

If you increase the number of lamps in a series circuit, there will be less current. The lamps resist the current, so if you put more lamps into the circuit, there is more resistance. You could do the same with a variable resistor.