. The torch worked for 14 400 seconds before the cells needed replacing. The current in the LED was 50 mA.

Complete question:

The torch worked for 14,400 seconds before the cells needed replacing. The current in the LED was 50 mA.

Calculate the total charge flow through the cells.

the total charge flow through the cells is 720 C.

Explanation:

Given;

life spam of the torch cells, t = 14,400 s

current in cell, I = 50 mA = 50 x 10⁻³ A

The quantity of charge flowing through the cells is calculated as;

Q  = It

Q = 50 x 10⁻³ x 14,400

Q = 720 C

Therefore, the total charge flow through the cells is 720 C.

type of error:

the error in the sentence is a "dangling modifier". a dangling modifier is a phrase, word or clause that "dangles" because there is not target to modify. in this case, "after mopping the floor" is the dangling modifier since it has no word to modify. the noun "house" cannot mop the floor; therefore there is a mistake in the writing of the sentence.

needs an explanation