Questions and Answers
What is the resistance formula?
R = V/I
What is the current formula?
I = V/R
What is the voltage formula?
V = R x I
What is the unit of resistance?
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What is the unit of current?
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What is the unit of voltage?
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What is the power formula?
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What is the energy formula?
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What does KWH stand for?
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What is the unit of power?
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Study Notes
Electric Current Formulas
- Resistance Formula: Resistance (R) is calculated by the formula ( R = \frac{V}{I} ), where V is voltage and I is current.
- Current Formula: Current (I) can be determined using the formula ( I = \frac{V}{R} ), relating it to voltage and resistance.
- Voltage Formula: Voltage (V) is found with the formula ( V = R \times I ), connecting it with resistance and current.
Units of Measurement
- Resistance Unit: The unit of resistance is Ohms (Ω), which quantifies how much a material opposes the flow of electric current.
- Current Unit: Current is measured in Amps (A), indicating the rate of flow of electric charge.
- Voltage Unit: Voltage is expressed in Volts (V), representing the potential difference that pushes electric current through a circuit.
- Power Unit: Power is measured in Watts (W), which quantifies the rate at which energy is used or produced in a system.
Additional Formulas
- Power Formula: Power can be calculated using ( W = V \times A ), indicating that power (W) is the product of voltage (V) and current (A).
- Energy Formula: Energy usage is expressed in Kilowatt-hours (KWH), calculated by ( KWH = KW \times H ), where KW is kilowatts and H is hours.
- Kilowatt-hours: KWH is a unit of energy that represents the amount of energy used over time, commonly used for electrical billing.
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Description
Test your knowledge of fundamental electric current formulas with these flashcards. Each card presents key concepts such as resistance, current, and voltage, along with their mathematical relationships. Perfect for students looking to reinforce their understanding of electrical principles.
