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Electrical current is defined by how much electric charge has been transferred per second, giving the following relationship close relationship A relationship tells us how two or more variables ...
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Learn how to calculate the quantity of charge, electric current or time using the equation Q=It. See worked examples, definitions, applications and practice questions for chemistry students.
Q = I ⋅ t. Q is the electric charge, measured in coulombs [C]. I is the current, measured in amperes [A]. t is the time period, measured in seconds [s]. Momentary current. Q is the electric charge, measured in coulombs [C]. i(t) is the momentary current, measured in amperes [A]. t is the time period, measured in seconds [s].
Learn the basic concepts and quantites of charge and current in electrical circuits. See definitions, formulas, examples, and references for calculating current and charge flow.
Learn how charge and current are related in physics with the formula Q=It, where Q is the charge and I is the current. Watch examples of how to calculate current and charge in different situations, such as charging a smart phone.
Q = It Q = 0.25 x (1 x 60 x 60)s = 900 C. 5. A current of 20 mA flows in a circuit. How much charge passes through a point in the circuit in 1 min 30 sec. Q = It Q = (20 ÷ 1000) x ( 60 + 30)s = 1.8 C. 6. A charge of 60 coulombs passes a point a circuit in 10 secs. Calculate the current flowing.
What does Q represent in a circuit? The symbol for electric charge quantity is the capital letter "Q," with the unit of coulombs abbreviated by the capital letter "C." It so happens that the unit for electron flow, the amp, is equal to 1 coulomb of electrons passing by a given point in a circuit in 1 second of time.
Learn how to calculate the charge passing through a point in a circuit using the equation Q = It. Find examples, worked out answers and online questions on movement of electrical charge.
Q = It (Coulombs) = (Amps) x (seconds) therefore, substituting for Q in the work equation, W = (It)V . rearranging, W = VIt . back to top . Power . By definition, 'power' is the rate of working and is equal to the work done divided by the time taken. substituting for W .