Question

which has more resistance:100W bulb and 60W bulb?

Answer 1

According to Ohm’s Law, the resistance of an electric device can be calculated by dividing its voltage by the amount of electric current assumed.

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.

Answer 2

Answer:

60 W bulb has higher resistance

Explanation:

P=VI

When P =100W ,I is higher ( P directly proportional to I)

When P =2@'8'5"4(7!0"4

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