Week 2 Worksheet 26104 Ohms Law completed

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Feb 20, 2024

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EES103 Worksheet 26104 Ohm’s Law © Lincoln Technical Institute. All Rights Reserved. This document contains Lincoln Tech confidential and proprietary information and may not be copied, further distributed, or otherwise disclosed, in whole or in part, without the expressed written permission of Lincoln Technical Institute. 8/23/2022 Instructions: Use the NCCER Electrical Level 1 book (Module 26104) to complete the worksheet. 1. Calculate the resistance of a light bulb through which a current of 1 A passes when a potential difference of 180 V is applied. 𝑅𝑅 = 𝐸𝐸 𝐼𝐼 2. What is the potential difference serving a toaster with resistance of 47 𝛺𝛺 and a current of 3.5A flow? 3. What is the current through an electric heater with resistance of 70 𝛺𝛺 when the Pd is 208V? 4. A light bulb uses 2.5 A when a voltage of 180V is applied, what is the power dissipated in the light bulb? 5. A 75W light bulb is connected to a 120V supply. What is the current in the light bulb? 6. A 24V battery delivers a ½ ampere of current to an electric motor. What is the power dissipated by the motor? 7. A 188 𝛺𝛺 , a 290 𝛺𝛺 and a 170 𝛺𝛺 resistors are connected in series across a 24v battery. Find the total resistance of the circuit. What is the current through each resistor?
EES103 Worksheet 26104 Ohm’s Law © Lincoln Technical Institute. All Rights Reserved. This document contains Lincoln Tech confidential and proprietary information and may not be copied, further distributed, or otherwise disclosed, in whole or in part, without the expressed written permission of Lincoln Technical Institute. 8/23/2022 8. A 420 𝛺𝛺 and a 145 𝛺𝛺 resistor are connected in series across a 220V potential difference. What is the total resistance of the circuit? What is the current through each resistor? What is the voltage drop across each resistor? 9. A 310 𝛺𝛺 , a 500 𝛺𝛺 , and a 340 𝛺𝛺 resistor are connected in series across a 12V battery. What is the total resistance of the circuit? What is the current through each resistor? What us the voltage drop across each resistor? 10. A 600 𝛺𝛺 , a 900 𝛺𝛺 , and an unknown resistor are connected in series across 240V battery. An ammeter in the circuit reads .088A. What is the total resistance of the circuit? What is the size of the unknown resistor? What is the power dissipated in each resistor? 11. Three 215 𝛺𝛺 resistors are connected in parallel across a 60V battery. Find the total resistance of the circuit. What is the total current? What is the current through each resistor? 12. A 444 𝛺𝛺 , a 470 𝛺𝛺 , and a 360 𝛺𝛺 resistor are connected in parallel and placed across a 120V potential difference. What is the total resistance of the circuit? What is the current? What is the current through each resistor?
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