Grade 12 Math: Electrical Load Calculation
This worksheet covers fundamental concepts and calculations related to electrical load in Grade 12 Math, including Ohm's Law, power, and series/parallel circuits.
Includes
Standards
Grade 12 Math: Electrical Load Calculation
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Read each question carefully and show all your work. Use the provided formulas and diagrams to help you solve the problems.
1. Consider the simple electric circuit shown below. If the voltage source is 12V and the resistor has a resistance of 4Ω, calculate the current flowing through the circuit.
Formula: V = IR
2. Which of the following formulas correctly represents electrical power (P)?
P = V/I
P = I/R
P = V * I
P = V * R
3. In a series circuit, the total resistance is the of individual resistances, and the current is throughout the circuit.
4. Explain how to calculate the total resistance in a parallel circuit with two resistors.
5. A circuit has two resistors, R1 = 6Ω and R2 = 3Ω. If they are connected in parallel to a 9V power supply, calculate the total current drawn from the supply. Draw a simple diagram of this circuit.
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