Week 2 Worksheet 26104 Ohms LawF
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Lincoln Technical Institute, Lincoln *
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Course
26104
Subject
Electrical Engineering
Date
Jan 9, 2024
Type
Pages
3
Uploaded by ColonelJackalPerson1011
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?
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
13.
A 560
𝛺𝛺
, a 380
𝛺𝛺
,
and a 325
𝛺𝛺
resistor are connected in parallel across a 120V battery. What is the
total resistance of the circuit? What is the circuit current? What is the current through each
resistor? What is the power dissipated?
14.
A 120
𝛺𝛺
, a 150
𝛺𝛺
,
and an unknown resistance are connected in parallel. The total current of the
combination is 12A. The current across the 150
𝛺𝛺
branch is 4A. What is the total voltage? What is
the total resistance? What is the unknown resistance?
15.
A 225
𝛺𝛺
resistor, a 650
𝛺𝛺
resistor, and a 742
𝛺𝛺
resistor is connected in parallel. This parallel
combination is in series with a 325
𝛺𝛺
resistor and also in series with a 438
𝛺𝛺
resistor. Calculate
the total resistance, the circuit current, the current through each resistor, and the voltage drop
across each resistor. A 90V battery is used?
16.
A 700
𝛺𝛺
resistor is in a parallel with a 300
𝛺𝛺
resistor. This parallel combination is in series with a
544
𝛺𝛺
resistor. A 30V battery is used. What is the equivalent resistance of the entire circuit?
What is the total current?
17.
A 470
𝛺𝛺
, a 100
𝛺𝛺
, and a 1000
𝛺𝛺
resistor is in series. This series combination is then in parallel
with a 600
𝛺𝛺
resistor. The combination of the four resistors is then in series with a 1000.3
𝛺𝛺
resistor. A 24V battery is used. What is the equivalent resistance of the entire circuit? What is
the total current? What is the voltage drop across the 600
𝛺𝛺
resistor? What is the current
through the 100
𝛺𝛺
resistor?
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