Question

A current of 1 A is drawn by a filament of a bulb. The time of electrons passing through the bulb in 16 seconds would be:

(a) 1 C
(b) 16 C
(c) 8 C
(d) 2 C

Answer 1

For a current of 1 A flowing for 16 seconds, the charge passing through the bulb is calculated using Q = I × t, which results in 16 C. Hence, the correct answer is (b) 16 C.

Step-by-step explanation:

The student's question concerns the amount of charge that passes through the bulb when a certain electric current is supplied for a given time. Using the relationship between electric current (I), charge (Q), and time (t), which is I = Q/t, or rearranged to Q = I × t, we can calculate the amount of charge passing through the bulb.

For a current of 1 A flowing for 16 seconds, using the formula Q = I × t, we get Q = 1 A × 16 s = 16 C. Therefore, the charge that passes through the bulb in 16 seconds is 16 coulombs.

In another example, if a battery is connected to a bulb and there is 2.5 A of current in the circuit, the amount of charge that will flow through the circuit in a time of 0.5 s is calculated as Q = I × t = 2.5 A × 0.5 s = 1.25 C.

So the correct answer would be option (c).