Voltage, Current And Resistance MCQ Questions & Answers | Electrical Engineering

The question asks us to find the amount of charge (in coulombs) that flows through a lamp filament given the current and time.
Remember the fundamental relationship between current (I), charge (Q), and time (t): I = Q/t
Where:
I is the current in Amperes (A)
Q is the charge in Coulombs (C)
t is the time in seconds (s)

We are given:
Current, I = 6 A
Time, t = 1.75 s
We need to find Q.

Rearranging the formula to solve for Q, we get: Q = I * t

Substitute the given values:
Q = 6 A * 1.75 s
Q = 10.5 C

Therefore, the correct answer is Option A: 10.5 C.

Atomic Number: The atomic number of an element tells you how many protons are in the nucleus of an atom of that element.
Neutral Atom: A neutral atom means the atom has no overall electrical charge.
Protons and Electrons: Protons have a positive charge (+), and electrons have a negative charge (-).
Balancing the Charges: For an atom to be neutral, the number of positive charges (protons) must equal the number of negative charges (electrons).
Therefore: If an atom has an atomic number of five, it has five protons. To be neutral, it must also have five electrons to balance out the positive charge of the protons.