Ohm's Law Fundamentals
A Grade 12 science worksheet covering the principles and applications of Ohm's Law in electrical circuits.
Includes
Standards
Topics
Ohm's Law Fundamentals
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Date:
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Read each question carefully and answer to the best of your ability. Show all your work for calculation problems.
1. Which of the following correctly states Ohm's Law?
V = I/R
I = V/R
R = V*I
V = I + R
2. What is the unit of electrical resistance?
Ampere
Volt
Ohm
Watt
3. According to Ohm's Law, the current flowing through a conductor between two points is directly proportional to the voltage across the two points and inversely proportional to the between them.
4. A material that offers very little resistance to the flow of electric current is called a .
5. A circuit has a voltage of 12 V and a current of 2 A. What is the resistance of the circuit?
6. If the resistance in a circuit is 10 Ω and the current flowing through it is 0.5 A, calculate the voltage across the resistor.
7. Increasing the voltage in a circuit will decrease the current, assuming resistance remains constant.
True
False
8. Ohm's Law applies to all materials under all conditions.
True
False
9. Consider the simple circuit shown below. If the voltage source is 9V and the resistor has a resistance of 3Ω, calculate the current flowing through the circuit.
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