Ohm's Law Calculations (V=IR)
Authored by Heather Benslay
Science
11th Grade
Used 4+ times
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15 questions
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1.
OPEN ENDED QUESTION
3 mins • 1 pt
Instructions: Solve for the missing variable in each problem. Remember to show your work and include the correct units
Calculate Voltage (V): A heating element has a resistance (R) of 25 Ω and draws a current (I) of 4 A. What is the voltage across the element?
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2.
OPEN ENDED QUESTION
3 mins • 1 pt
Instructions: Solve for the missing variable in each problem. Remember to show your work and include the correct units
Calculate Current (I): A light bulb has a resistance (R) of 120 Ω and is connected to a 12 V power supply. What current flows through the bulb?
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3.
OPEN ENDED QUESTION
3 mins • 1 pt
Instructions: Solve for the missing variable in each problem. Remember to show your work and include the correct units
Calculate Resistance (R): An electronic circuit is powered by a 5 V source and draws a current (I) of 0.02 A. What is the total resistance of the circuit?
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4.
OPEN ENDED QUESTION
3 mins • 1 pt
Instructions: Solve for the missing variable in each problem. Remember to show your work and include the correct units
Calculate Voltage (V): A simple wire carries 0.1 A of current and has a total resistance (R) of 3.5 Ω. What is the voltage drop across the wire?
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5.
OPEN ENDED QUESTION
3 mins • 1 pt
Instructions: Solve for the missing variable in each problem. Remember to show your work and include the correct units
Calculate Current (I): A hairdryer plugged into a standard 120 V outlet has an internal resistance (R) of 15 Ω. What current does the hairdryer draw?
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6.
OPEN ENDED QUESTION
3 mins • 1 pt
Instructions: Solve for the missing variable in each problem. Remember to show your work and include the correct units
Calculate Resistance (R): A small toy motor requires 6 V to run and operates with a current (I) of 0.5 A. What is the motor's resistance?
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7.
OPEN ENDED QUESTION
3 mins • 1 pt
Instructions: Solve for the missing variable in each problem. Remember to show your work and include the correct units.
A high-power laser system operates with a large current of 15 A against an equivalent resistance of 8 Ω. What is the total voltage required?
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