Homework Answers
1) cannot be answered as you did not provide all the information
---------------------
2)
Ammeter is always connected in series with the components to measure the current accurately. The resistance of ammeter is very very less.
----------------------
3)
voltmeter is always connected in parallel across the components and its resistance is very high in order to prevent any flow of current through.
-------------------------
4)
advantage of 120 over 240 V
a) low risk of electrocution
b) small voltage spike during transmission
disadvantages of 120 over 240 V
a) expensive to operate, usually thicker wires are needed
b) transformers are big and expensive
Add Answer to:
Questions 1. Do these resistors satisfy Ohm's law? Explain your answer! 2. Is an ammeter connected...
A 6.0 V battery is connected to two 7.70 kilo-Ohm resistors in series. An ammeter of...
A 6.0 V battery is connected to two 7.70 kilo-Ohm resistors in series. An ammeter of internal resistance 0.570 Ohm measures the current and at the same time a voltmeter with internal resistance 15.2 kilo-Ohm measures the voltage across one of the 7.70 kilo-Ohm resistors in the circuit. What does the ammeter read? What does the voltmeter read?
Exercise 2. An instrument used to measure current is called an ammeter. The ammeter is connected...
Exercise 2. An instrument used to measure current is called an ammeter. The ammeter is connected into a circuit in series in the loop in which the desired current reading is required. The resistance of an ideal ammeter is zero, and it is essential in real ammeters that the resistance of the instrument be very small compared to other resistances in the circuit. Why? R2 Ri a)-A meter to measure potential difference is called a voltmeter. To find the potential...
Pre-lab EM-5 Ohm's Law and Kirchhoff's Rules Ohm's Law The resistance R of a device can...
Pre-lab EM-5 Ohm's Law and Kirchhoff's Rules Ohm's Law The resistance R of a device can be determined by either directly measuring the resistance using an ohmmeter, or by measuring the current I through it and the voltage Vacross it, and then calculating R using Ohm's Law V R= (1) If the voltage across a resistor is 10V, and the current passing through it is 2.5 mA. of the resistor? What is the resistance R= Ω. Kirchhoffs Loop Rule Around...
Q1: What is Ohm's law? Explain in your own word its meaning. jo tro Q2: Draw...
Q1: What is Ohm's law? Explain in your own word its meaning. jo tro Q2: Draw a series circuit with three resistors. Label the currents and voltages in the circu diagram and write down the equations that relate those currents and voltages. Q 3: Same as the previous question for three resistors in parallel. .
1) (lab manual, Ch. 22.5) State Ohm's law in words. a. (lab manual, Equation 22.8) Write...
1) (lab manual, Ch. 22.5) State Ohm's law in words. a. (lab manual, Equation 22.8) Write the corresponding equation for Ohm's law. Define all variables. What are the SI units of each variable? b. (Example 22.5) If a potential difference of 3.0 V and a current of 0.10 A is measured in the circuit, what is the measured resistance value of the resistor? Include all units. c. (lab manual, Ch. 22.5) How can resistance be determined for an ohmic device...
Ohm's Law Name MWITTH Laboratory Report Questions: 1. If the switch were kept closed during the...
Ohm's Law Name MWITTH Laboratory Report Questions: 1. If the switch were kept closed during the procedures, and the circuit components heated up. how would this effect the measurement of current (D)? Hint, think about how resistance (R) depends on temperature (T) for a carbon resistor. 2. For the rheostat, compute the values of resistance Rh and voltage drop Vh across the rheostat if, Vi-5.0V, the Ammeter reads I-0.056A, and the voltmeter reads Vs-1.69 V.
a.When two resistors RA and RB are combined in series and connected to a battery it...
a.When two resistors RA and RB are combined in series and connected to a battery it is observed that the ratio of the power dissipated in RA to that dissipated in RB is equal to 10. If this arrangement is dismantled and the same two resistors connected in parallel to the same battery, what is the ratio of the power dissipated in RA to that dissipated in RB in this new circuit? b.How much energy is converted by a 12...
Need help with conclusion questions please 1. The objectives of this lab are (1) to determine...
Need help with conclusion questions please
1. The objectives of this lab are (1) to determine the actual (A) total resistance of three resistors connected in series and compare it with the experimental (E ) value of total resistance (2) to determine the actual (A) total resistance of three resistors connected in parallel and compare it with the experimental(E ) value of total resistance II. Apparatus(Equipment): Voltage source, ammeter that measures current , voltmeter that measures voltage. II. Procedure: Three...
Can I please get all the questions answered. Quiz When multiple resistors are connected in series...
Can I please get all the questions answered.
Quiz When multiple resistors are connected in series they have the same (a) power (b) resistance (c) voltage (d) current When multiple resistors are connected in parallel they have the same (a) power (b) resistance (c) voltage (d) current When two resistors R1 and R2 are connected in series, total resistance of them is (b) Rio (c) 1/R1+1/R2 (d) None of the answers When two resistors R1 and R2 are connected in...
Kirchhoft's Current Law states that S Comider a series circult consisting of thre resistors of 2...
Kirchhoft's Current Law states that S Comider a series circult consisting of thre resistors of 2 klo-ohms 4 kdo-ohm and s kilb-ohns, gnd a voltage souroi of 7 velts. What is the voltage across the 2 0 6 Consider a and s klo-ohms, and a voltage source of 7 voilts wwhat is the power dissipated by circuit consinting of three resistors eistore sourecor 7. Consider a series cincuit consisting of +10V source followed by a 100-ohm using Kirchherrs woltage Law....
Exercise 2. An instrument used to measure current is called an ammeter. The ammeter is connected into a circuit in series in the loop in which the desired current reading is required. The resistance of an ideal ammeter is zero, and it is essential in real ammeters that the resistance of the instrument be very small compared to other resistances in the circuit. Why? R2 Ri a)-A meter to measure potential difference is called a voltmeter. To find the potential...
Pre-lab EM-5 Ohm's Law and Kirchhoff's Rules Ohm's Law The resistance R of a device can be determined by either directly measuring the resistance using an ohmmeter, or by measuring the current I through it and the voltage Vacross it, and then calculating R using Ohm's Law V R= (1) If the voltage across a resistor is 10V, and the current passing through it is 2.5 mA. of the resistor? What is the resistance R= Ω. Kirchhoffs Loop Rule Around...
Q1: What is Ohm's law? Explain in your own word its meaning. jo tro Q2: Draw a series circuit with three resistors. Label the currents and voltages in the circu diagram and write down the equations that relate those currents and voltages. Q 3: Same as the previous question for three resistors in parallel. .
1) (lab manual, Ch. 22.5) State Ohm's law in words. a. (lab manual, Equation 22.8) Write the corresponding equation for Ohm's law. Define all variables. What are the SI units of each variable? b. (Example 22.5) If a potential difference of 3.0 V and a current of 0.10 A is measured in the circuit, what is the measured resistance value of the resistor? Include all units. c. (lab manual, Ch. 22.5) How can resistance be determined for an ohmic device...
Ohm's Law Name MWITTH Laboratory Report Questions: 1. If the switch were kept closed during the procedures, and the circuit components heated up. how would this effect the measurement of current (D)? Hint, think about how resistance (R) depends on temperature (T) for a carbon resistor. 2. For the rheostat, compute the values of resistance Rh and voltage drop Vh across the rheostat if, Vi-5.0V, the Ammeter reads I-0.056A, and the voltmeter reads Vs-1.69 V.
Need help with conclusion questions please
1. The objectives of this lab are (1) to determine the actual (A) total resistance of three resistors connected in series and compare it with the experimental (E ) value of total resistance (2) to determine the actual (A) total resistance of three resistors connected in parallel and compare it with the experimental(E ) value of total resistance II. Apparatus(Equipment): Voltage source, ammeter that measures current , voltmeter that measures voltage. II. Procedure: Three...
Can I please get all the questions answered.
Quiz When multiple resistors are connected in series they have the same (a) power (b) resistance (c) voltage (d) current When multiple resistors are connected in parallel they have the same (a) power (b) resistance (c) voltage (d) current When two resistors R1 and R2 are connected in series, total resistance of them is (b) Rio (c) 1/R1+1/R2 (d) None of the answers When two resistors R1 and R2 are connected in...
Kirchhoft's Current Law states that S Comider a series circult consisting of thre resistors of 2 klo-ohms 4 kdo-ohm and s kilb-ohns, gnd a voltage souroi of 7 velts. What is the voltage across the 2 0 6 Consider a and s klo-ohms, and a voltage source of 7 voilts wwhat is the power dissipated by circuit consinting of three resistors eistore sourecor 7. Consider a series cincuit consisting of +10V source followed by a 100-ohm using Kirchherrs woltage Law....
Most questions answered within 3 hours.
-
MATLAB
write a MATLAB function (1) output a third-order polynomial
function with the coefficients as the...
asked 4 minutes ago -
A z-score
communicates a raw score’s "relative standing"
under the normal curve in relation to:
asked 13 minutes ago -
An object is vibrating on a spring with the following equation
of motion:
?=(30 ??)cos((2?)/(160)?)
a)...
asked 12 minutes ago -
Vulcan Flyovers offers scenic overflights of Mount St. Helens,
the volcano in Washington State that explosively...
asked 14 minutes ago -
If organizations do not adapt fast enough and move incrementally
from the twentieth-century model to the...
asked 15 minutes ago -
A helium balloon with 2.5L of gas has a gauge pressure of 10,000
Pa. The balloon...
asked 19 minutes ago -
What is responsible for Jupiter's enormous magnetic field?
asked 35 minutes ago -
At the end of the year, a company offered to buy 5,000 units of
a product...
asked 36 minutes ago -
Implement C++ program for each of the following.
Let D = [-48, -14, -8, 0, 1,...
asked 56 minutes ago -
Consider a labor market in which LD = 400 – 4W and LS = 250 +...
asked 1 hour ago -
Let’s say you are teaching a typically-developing young child
how to eat with a spoon. Describe...
asked 54 minutes ago -
Ask Your Teacher A toy gun uses a spring to project a 5.6-g soft
rubber sphere...
asked 1 hour ago