Let an electric current of 1.5 A flow through an incandescent lamp in a circuit. What is the amount of charge that flows through it in 10 ms?

The electric current (I) is defined as the rate of flow of electric charge (Q) through a conductor over a specific time (t). This relationship is mathematically expressed by the formula I = Q / t, which can be rearranged to solve for charge as Q = I!!!! t [1]. In this problem, the current is given as 1.5 A and the time interval is 10 ms. To maintain SI unit consistency, the time must be converted from milliseconds to seconds: 10 ms = 10 / 1000 s = 0.01 s. By substituting these values into the formula, the total charge is calculated as Q = 1.5 A!!!! 0.01 s = 0.015 C. Therefore, the amount of charge flowing through the incandescent lamp in 10 ms is 0.015 Coulombs, matching option 1.

Sources

1. [1] Science , class X (NCERT 2025 ed.) > Chapter 11: Electricity > 11.1 ELECTRIC CURRENT AND CIRCUIT > p. 171