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A current of 10 mA flows through a resistor. How much charge passes through the resistor in 1 minute?
0.6 C
6 C
0.06 C
60 C
0.6 C
The amount of charge passing through a conductor is the product of the electric current and the time duration for which it flows. Given a current of 10┬аmA (0.01┬аA) and a time of 1┬аminute (60┬аseconds), the total charge is calculated as 0.6┬аC.
The amount of charge passing through a conductor is the product of the electric current and the time duration for which it flows. Given a current of 10┬аmA (0.01┬аA) and a time of 1┬аminute (60┬аseconds), the total charge is calculated as 0.6┬аC.
Think of current as the rate of water flowing through a pipe and charge as the total volume of water that has passed through the pipe after a certain period of time.
Remember 'QIT' (pronounced 'quit'): Q=I├ЧT.
I=tQтАЛ тАФ Definition of electric current
Q=I├Чt тАФ Formula to calculate total charge
The principle is defined by the definition of electric current, which is the rate of flow of electric charge across a cross-section of a conductor. Mathematically, I=tQтАЛ, where I is current, Q is charge, and t is time. By rearranging this formula to Q=I├Чt, we can determine the total charge transferred.
Always convert time into standard SI units, which is seconds (1┬аmin=60┬аs).
Always convert current into standard SI units, which is Amperes (10┬аmA=10├Ч10тИТ3┬аA=0.01┬аA).
Charge (Q) is measured in Coulombs (C).
Allows calculation of total energy consumption or battery capacity over time.
Battery capacity rating (mAh)
Calculating electron flow in circuits
The milliampere (mA) prefix stands for 10тИТ3 amperes.
Option B (6┬аC) occurs if one forgets to convert mA to A. Option C (0.06┬аC) occurs if one forgets to convert minutes to seconds.
A is correct тАФ The total charge is 0.01┬аA├Ч60┬аs=0.6┬аC.
In competitive physics exams, always check for unit prefixes like m (milli), ╬╝ (micro), or k (kilo) before performing calculations.