Question

part.A torch bulb draws a current of 0.2 A from a source of 3 V and glows. What isthe resistance of the bulb when it glows?​

Answer 1

To find the resistance of a bulb when it glows, use Ohm's Law, dividing the voltage (3 V) by the current (0.2 A), resulting in a resistance of 15 ohms.

Step-by-step explanation:

The resistance of the bulb when it glows can be calculated using Ohm's Law, which states that Resistance (R) is equal to the Voltage (V) divided by the Current (I). Given that the voltage is 3 V and the current is 0.2 A, the resistance can be found with the formula R = V / I. Plugging in the values, we get R = 3 V / 0.2 A, which results in a resistance of 15 ohms.