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Ohm's Law Calculations (V=IR)

Authored by Heather Benslay

Science

11th Grade

Used 2+ times

Ohm's Law Calculations (V=IR)
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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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