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In a closed circuit, if 100┬аCoulomb charges flow for a duration of 50┬аsec, then the current drawn in the circuit is ______.
5 A
0.2 A
0.5 A
2 A
2 A
Electric current (I) is defined as the rate of flow of electric charge (Q) through a conductor per unit time (t). Using the formula I=tQтАЛ, where Q=100┬аC and t=50┬аs, the current drawn is 2┬аA.
Electric current (I) is defined as the rate of flow of electric charge (Q) through a conductor per unit time (t). Using the formula I=tQтАЛ, where Q=100┬аC and t=50┬аs, the current drawn is 2┬аA.
Think of electric current as water flowing through a pipe: the total charge is the volume of water (in liters) and time is how long the tap is open. The rate of flow (liters per second) represents the electric current (amperes).
Q and T give I: 'Charges on Top, Time on Bottom' (I=tQтАЛ).
I=tQтАЛ тАФ Electric current as rate of flow of charge
Q=I├Чt тАФ Total charge calculation
According to Ohm's law and fundamental electrostatics, electric current is the flow of free electrons or charge carriers in a circuit. The magnitude of electric current is directly proportional to the total charge transferred and inversely proportional to the time interval over which the charge flows.
Electric current is measured in Ampere (A).
One Ampere is defined as one Coulomb of charge flowing per second (1┬аA=1┬аC/s).
Charge (Q) is measured in Coulombs (C) and time (t) in seconds (s).
Simple direct linear relationship between charge, time, and current.
Assumes steady direct current (DC) flow.
Battery charging and discharging analysis
Household electrical appliance current ratings
Option A (5┬аA) corresponds to 20100тАЛ.
Option B (0.2┬аA) corresponds to 10050тАЛ.
Option C (0.5┬аA) corresponds to 10050тАЛ or similar inverted ratios.
Option D (2┬аA) is 50100тАЛ=2┬аA.
D is correct тАФ The current drawn in the circuit is 2 A.
Always ensure time is in SI units (seconds) before applying the formula I=tQтАЛ. If time is given in minutes, multiply by 60 first.
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