William Spann - Calculating Ohm's Law practice (google sheet) _SELF GRADING_
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Harvard University *
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Course
134
Subject
Electrical Engineering
Date
Apr 3, 2024
Type
xlsx
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2
Uploaded by PresidentGalaxy13241
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Calculating Voltage, Current, and Resistance
11
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units
Question 1
I=
62.5
Amps
V=
125.0
Volts
R=
2.0
Ohms
Formula to use:
I=V/R
units
Question 2
I=
40.0
Amps
V=
20.0
Volts
R=
0.5
Ohms
Formula to use:
I=V/R
units
Question 3
I=
45.0
Amps
V=
1800.0
Volts
R=
40.0
Ohms
Formula to use:
R=V/I
units
Question 4
I=
50.0
Amps
Formula to use:
V=
200.0
Volts
R=
4.0
Ohms
V=I*R
units
Question 5
I=
20.0
Amps
V=
50.0
Volts
R=
2.5
Ohms
Formula to use:
I=V/R
units
Question 6
I=
6.5
Amps
Formula to use:
V=
19.5
Volts
R=
3.0
Ohms
V=I*R
units
Question 7
I=
6.0
Amps
V=
12.0
Volts
R=
2.0
Ohms
Formula to use:
R=V/I
units
Question 8
I=
4.0
Amps
V=
240.0
Volts
decimals at the tenths place (use 1 decimal). When all entries are GREEN, you are done. Don't use spaces when entering values.
How much current flows through a 125 V battery that has a resistance of 2 Ohms?
Calculate the current an electric dryer draws when it is connected to a 20 V source that has a Resistance of 0.5 Ohms.
What is the resistance in a circuit if a potential difference of 1800 V causes a current of 45 A?
What is the potential difference (voltage) across a hand-held fan that has a resistance of 4.0 Ohms and a current of 50 A?
How much current flows through a 50 V battery with a resistance of 2.5 Ohms?
A heating coil offers a resistance of 3.0 Ohms. What potential difference (voltage) is required so that 6.5 A of current pass through it?
How much resistance does a heavy duty flashlight have if it has a current of 6 A flowing through it and is being powered by a 12 V battery?
What is the current a toaster draws when it is connected to a 240
R=
60.0
Ohms
Formula to use:
I=V/R
units
Question 9
I=
20.0
Amps
V=
10000.0
Volts
R=
500.0
Ohms
Formula to use:
V=I*R
units
Question 10
I=
5.0
Amps
V=
200.0
Volts
R=
40.0
Ohms
Formula to use:
R=V/I
units
Question 11
I=
6.0
Amps
Formula to use:
V=
30.0
Volts
R=
5.0
Ohms
I=V/R
Nice job, you're done!
What is the current a toaster draws when it is connected to a 240 V source and has a resistance of 60 Ohms?
What is the potential difference across a cell phone that has a resistance of 500 Ohms and a current of 20 Amps flowing through it?
An electric microwave draws its power from a 200 V power source with a current of 5 A. What is the resistance?
What is the current a refrigerator draws when it is connected to a 30 Volt power source with a resistance of 5 Ohms?
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Related Questions
(a) In the figure what does the ammeter read if ɛ = 5.6 V (ideal battery), R1
= 1.9 2, R2 = 5.1 N, and R3
8.5 N? (b) The ammeter and battery are now
interchanged. Determine the ammeter reading for this new configuration.
R2
R3
Units
(a) Number
Units
(b) Number
ww
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Problema 6
In the figure, the current Ibat in the battery is equal to
A. 1/2 B. 21₁/3 C. I₁
D. 31/2 E. 211
ilt
Ibat
ww
R
www
2R
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12
13
R1
E2
R3
R2
E1
For the circuit shown above, the emf of the batteries and the resistances are listed below.
%3D
81 = 77 V, 82 = 5 V, R1 = 8 Q, R2 = 70, R3 = 23 Q.
%3D
%3D
Determine /2=? Please express your answer in units of Amperes (A) with two decimal places. If you a find a negative value,
please don't forget the minus sign.
www
ww
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(a)
In figure (a) below, P₁ = 36 W. Is element 2 absorbing or supplying power, and how much?
-48 W. Is element 1 absorbing or supplying power, and how much?
(b) In figure (b) below, P2
Ⓡ
12 V
2 6V
(b)
16+ +21
6 V
2 24 V
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pls answer in 3 decimal places & box your answer
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Kindly send solution.
An inductance of 1 henry and a resistance of 2 ohms are connected in series with
battery of 6^e-0.0001 volt. . No current is flowing initially. When will the current measure 0.5 ampere?
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can you do it in 30 mints please
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Find V1 (volt) unit if E1=11V, E2=-4.2V, R1=6k2, and R2=2.9kQ. (Answer should roundoff
to 2 decimal places)
+ V -
R1
o Vo
E, o Mm
Si
+
R2
V2
E2
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Ok please in typing format please ASAP for the
Please thank you for your positive
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The circuit below(left) displays a schematic diagram of a battery. The voltage measured by U1 is called the terminal voltage given R1 = 1 ohm. In the circuit below(right), the terminal voltage of each of the battery-resistor combination is VT = 1.5 volts.
Find the percentage of voltage loss of the battery due to the internal resistance R1.
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Using Equivalent Resistance Formula/Computation
find:
RBE
Set the supply voltage to 5VDC. Get the ratio of the supply voltage and total current (R=V/I).
Show complete solutions. Answers must be at fourth decimal place.
arrow_forward
Calculate the power absorbed by each element in the circuit.
+1
P₁
=
=
I=1A
=
12 V
- 10W, P₂
10W, P₂
=
=
=
1
+ 10V -
- 5W,
P12V =
P₁ 10W, P₂
P₁ = 10W, P2 = 5W, P12V =
5W,
P12V
P₁
2
+ 5V-
– 5W, P12V
=
=
- 12W, P71
- 12W, P₁
12W, P₁1 =
12W,
= 7W
PTI = 7W
7W
4 7*1
7W
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Find V2 (volt) unit if E1=11V, E2=-5.2V, R1=5.2kQ, and R2=2.5k2. (Answer should
roundoff to 2 decimal places)
+ V, -
R1
E, o
Si T
R2
V2
E2
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Which of the following statements is true ?
OA. Power is additive in series and parallel circuits.
O B. A battery is a current source.
OC. In a closed circuit, current leaves the positive terminal of a battery, and is used up by the time it reaches the negative terminal.
O D. Current only flows through the path of least resistance.
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From the given figure, determine the
following:
R₁, R2, R3
1₁, 12, 13
V₁, V2, V3
P₁, P2, P3
RT, IT, VT, PT
192
292
3Ω
till
24 volts
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8 Volts with 220ohms
Measured I in 8 Volts =0.037A
Measured V in 8 volts = 7.95v
Computed power
P=VI=0.2942
P=I^2xR=0.3012
P=V^2/R=0.2909
What is the general conclusion in words and formula about the relationship between i and v when R is any value?
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*P1.44. Use KVL and KCL to solve for the labelled
currents and voltages in Figure P1.44.
Compute the power for each element and
show that power is conserved (i.e., the
algebraic sum of the powers is zero).
=20 V A
B
4-2A
VC
D-10 V
16-1A
Figure P1.44
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2. In the figure shown below, determine the following: Battery voltage = 240 volts
a. The current in the battery, I.
b. The current in the 7-ohm resistor,
Resistances are in ohms
c. The current in the R-ohm resistor, y.
d. The current in the 18-ohm resistor, I
e. The current in the R-ohm resistor, I,.
I2
7
42
I5
I3
12
R
I4
18
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In the circuit of the figure, determinea) the energy dissipated in the 50 ohm resistor in 10 minutes.
b) the number of electrons that leave the battery in 10 minutes.
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pls ans soon
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Please break this down for me as much as possible, im struggling to grasp kirchhoff's, thank you.
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Don't use ai to answer I will report your answer Solve it Asap with explanation and calculation
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Use 30 KVA and 380 V as base values in zone 1 in the system in figure 1
find the new per unit reactance of T2
Zone 1
V, 380V
38
T₁
50 kVA
400/800 volts
Xeq=0.15 p.u.
Zone 2
Xline=2 ohm
Zone 3
Zload 0.5+j1.3 ohm
BE
T₂
40 kVA
750/200 volts
Xeq=0.1 p.u.
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Measured
Voltage (V)
Resistor
Color
Resistance
Measured
Nominal value (k2)
Current (mA)
Red
Black
Orange Brown
Yellow Green
RI
Red
Gold
Gold
Gold
R2
Red
R3
Red
Resistor I readings
ACV
1000
250
2.5m
DCV
DCV
50
10
Sou
25m
0.1
DCA
DCA
0.25
0.25
25
Resistor 2 readings
SKA
EKA
2 Sm
1000
259
DCV
DCV
Sou
25m
0.1
DCA
18
25 025
DCA
0.25
Resistor 3 readings
2 5m
1000
259
DCV
DCV
25m
50
0.1
DCA
DCA
0.25
0.25
25
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Please help me solve questions 1-5 using the given values found.
arrow_forward
Find I (mA) unit if E1=10V, E2=-5.3V, R1=4.4kQ, and R2=1.5k2. (Answer should roundoff
to 2 decimal places)
+ V -
R1
E, o M
o Vo
Si
+
R2
V2
E2
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Please show the complete solution. Thanks
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* 811 1:00
docs.google.com/forms
4
i) Figure below show an electronic device, it is
O A DC voltage source
A variable resistor.
A switch.
An Integrated circuit (1.C).
ii) The resistor shown has a resistance measured in Ohms, it is equal
to
with a percentage of error is
Second
First Digit
Multiplier
Digit
Tolerance
25, 5%
200, 10 %.
200, 5%
O 25, 10%.
iii) The circuit shown has an; .Ammeter, voltmeter, two resistances
and variable resistor components. Describe the connection of each
component (series or parallel).
0.15 A
...
O O O
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Please answer all subpart please it's compulsory please all subpart please
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The values of the circuit elements are given below. What is the average power transferred to resistor R2?
R1=250 ohms
C=6 micro F
L=0.6H
R2=2000 ohms
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QUESTION 20
A 9.0-V battery is hooked to a 3.0 ohm resistor. What current is flowing through the circuit?
O a. 27.0 A
O b.0.3 A
OC.3.0 A
O d. 12.0 A
QUESTION 21
What is voltage?
O a. The flow of protons
Ob. the number of charged particles that pass each second
Oc the difference in potential energy of charged particles
Od. the rate at which the energy is being transformed
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Solve it quickly please
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Related Questions
- (a) In the figure what does the ammeter read if ɛ = 5.6 V (ideal battery), R1 = 1.9 2, R2 = 5.1 N, and R3 8.5 N? (b) The ammeter and battery are now interchanged. Determine the ammeter reading for this new configuration. R2 R3 Units (a) Number Units (b) Number wwarrow_forwardProblema 6 In the figure, the current Ibat in the battery is equal to A. 1/2 B. 21₁/3 C. I₁ D. 31/2 E. 211 ilt Ibat ww R www 2Rarrow_forward12 13 R1 E2 R3 R2 E1 For the circuit shown above, the emf of the batteries and the resistances are listed below. %3D 81 = 77 V, 82 = 5 V, R1 = 8 Q, R2 = 70, R3 = 23 Q. %3D %3D Determine /2=? Please express your answer in units of Amperes (A) with two decimal places. If you a find a negative value, please don't forget the minus sign. www wwarrow_forward
- (a) In figure (a) below, P₁ = 36 W. Is element 2 absorbing or supplying power, and how much? -48 W. Is element 1 absorbing or supplying power, and how much? (b) In figure (b) below, P2 Ⓡ 12 V 2 6V (b) 16+ +21 6 V 2 24 Varrow_forwardpls answer in 3 decimal places & box your answerarrow_forwardKindly send solution. An inductance of 1 henry and a resistance of 2 ohms are connected in series with battery of 6^e-0.0001 volt. . No current is flowing initially. When will the current measure 0.5 ampere?arrow_forward
- The circuit below(left) displays a schematic diagram of a battery. The voltage measured by U1 is called the terminal voltage given R1 = 1 ohm. In the circuit below(right), the terminal voltage of each of the battery-resistor combination is VT = 1.5 volts. Find the percentage of voltage loss of the battery due to the internal resistance R1.arrow_forwardUsing Equivalent Resistance Formula/Computation find: RBE Set the supply voltage to 5VDC. Get the ratio of the supply voltage and total current (R=V/I). Show complete solutions. Answers must be at fourth decimal place.arrow_forwardCalculate the power absorbed by each element in the circuit. +1 P₁ = = I=1A = 12 V - 10W, P₂ 10W, P₂ = = = 1 + 10V - - 5W, P12V = P₁ 10W, P₂ P₁ = 10W, P2 = 5W, P12V = 5W, P12V P₁ 2 + 5V- – 5W, P12V = = - 12W, P71 - 12W, P₁ 12W, P₁1 = 12W, = 7W PTI = 7W 7W 4 7*1 7Warrow_forward
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Recommended textbooks for you
- Delmar's Standard Textbook Of ElectricityElectrical EngineeringISBN:9781337900348Author:Stephen L. HermanPublisher:Cengage Learning
Delmar's Standard Textbook Of Electricity
Electrical Engineering
ISBN:9781337900348
Author:Stephen L. Herman
Publisher:Cengage Learning