Copy of Lab 2 - Ohm’s Law

What are the factors that affects or influence the electrical properties of a material? c) Two of you have been given two instruments with the units in ohms, your colleague measures the resistivity of the material whiles you measure the resistance. Your supervisor comes around and ask you to comment both measurements, what would you tell him?

Part II: The potential difference across different elements of a circuit resistance in series 1. Using the circuit shown below, set R1 and R2 as shown in the chart below. For each pair of resistances in the chart below, record the drop in voltage, or potential, across R1 (Figure a), drop in voltage, or potential, across R2 (Figure b), then record it across both resistors (Figure c). R, R, E, E, R, Figure a Figure b R, E, E, R, Figure c them Resistance Values, Voltage Drops, and Curfent Data Values R, (ohms) (ohms) R2 V, (volts) 4 1-716 V 1.47 V V2 (volts) 0.268 V V12 (volts) | (amps) 26 1.984 1.978 V 65.6 MA 22 0.531 V 65.6 MA 18 1-978 V 12 0.920 V L.182 V 0796 V 65.6 mA 1.980 V 1.981 V 14 16 1.062 V 65.6 mA 10 20 0.657V 1.325 V 24 1.985 V 65.7 mA 0- 398 V 1. 587 V 65.6 mA please help mewith Question 2 and 3 no calculation needed just a faugafh combination from the voltage and current numbers for that combination. Can this be developed 2. From the data above, explore the relationship…

3. The figure on the left below shows a schematic diagram of a battery. The voltage measured by U1 is called the terminal voltage given R1 = 1 ohm. In the figure on the right below, the terminal voltage of each of the battery-resistor combination is Vr = 1.5 volts. Find the following: a. The current passing through R5. b. The currents passing through R1 and R3 C. The voltage across R1. d. The voltage of the battery EMF. e. The percentage of voltage loss ot the battery due to the internal resistance R1. The power dissipated by the internal resistance R1. g. The power dissipated by R5 if R1 = R2 = R3 = R4 = 0. h. The percentage of power dissipation loss due to the four resistors R1, R2, R3, and R4 f. R1 R3 S10 R1 U1 1.500 EMF EMF R5 100 V1 R2 $10 EMF R4 EMF EMF

In the figure the ideal batteries have emfs ɛ1 = 20.4 V, ɛ2 = 9.05 V, and ɛ3 = 5.40 V, and the resistances are each 2.40 Q. What are the (a) size and (b) direction (left or right) of current i,? (c) Does battery 1 supply or absorb energy, and (d) what is its power? (e) Does battery 2 supply or absorb energy, and (f) what is its power? (g) Does battery 3 supply or absorb energy, and (h) what is its power? (a) Number i Units (b) (c) (d) Number i Units (e) (f) Number i Units (g) (h) Number i Units

In the figure the ideal batteries have emfs &₁ = 18.4 V, E2 = 9.96 V, and 3 = 4.70 V, and the resistances are each 2.10 Q. What are the (a) size and (b) direction (left or right) of current i₁? (c) Does battery 1 supply or absorb energy, and (d) what is its power? (e) Does battery 2 supply or absorb energy, and (f) what is its power? (g) Does battery 3 supply or absorb energy, and (h) what is its power? (a) Number i (b) (c) (d) Number (e) (f) Number (g) (h) Number 18, www Units Units Units Units =1&₂ <

ANSWER IN ESSAY FORM What is ohm's law and what its connection to between voltage, current, and resistance?

What are the differences between load resistance in a circuit and internal resistance in a battery? Explain.

explain ohms law in terms of resistance

Please solve number 2 Topic: resistance and ohms law

The references for the voltage and current at the terminals of acircuit element are as shown . The numerical values for v and i are −20 V and −5 A. Do the electrons gain or lose energy as they pass through theelement in the box?

How is concept of voltage in electrical circuits is related to the concept of energy

You are given two metal samples. The first one is pure and the other one is unrefined. Will there be a difference in their electrical conductivity? If so, how is this possible?

2. The current flowing through a resistor is 1.2 ?? when a potential difference of 60 ?? is applied.Determine the value of the resistance.

1. Why resistance is an important property in the field of electronics and electricity? 2. When a resistance measuring device, such as the ohmeter, is not available, how would one go about determining the value of resistance in a particular electronic circuit or device? 3. What would be the impact on the resistance, current, and voltage if you put two or more resistors in series and in parallel?

Q1) What is current in terms of charge? a) Current is measured 2A in a DC circuit * How much charge is involved in the process? * How many electrons are involved in the process? * The voltage source of this current is 12 Volts. What is the power produced by the source?

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 voltage across R1 & voltage of the battery.

Part A Find the current through the resistor a and the potential difference across the resistor a Express your answer with the appropriate units. Part B Find the current through the resistor b and the potential difference across the resistor b Express your answer with the appropriate units. Part C Find the current through the resistor c and the potential difference across the resistor c Express your answer with the appropriate units. Part D Find the current through the resistor d and the potential difference across the resistor dExpress your answer with the appropriate units.

You want to produce three cylindrical wires with a diameter of 1.00 mm, each with a resistance of 1.00 V at room temperature. One wire is gold, one is copper and one is aluminum. Refer to the resistivity table (a) How long should each wire be?

Confused on how to measure each resistors current using tinkercad...can someone help me with this?

Using Ohm’s Law, what is the relationship of current, voltage, and resistance ? Explain and use illustrations, drawings or examples.

1. The practical unit of electric charge. 2. A path for the current to flow. 3. DC Voltage has 4. Resistance to current flow in AC circuits, measured in ohms. 5-7. Types of grounds in electrical circuits. 8. Also known as Ohm's Law. 9. A quantity defined as amount of work done over time. 10. Types of material that has 4 valence electrons. 11. One Coulomb is equal to 12. Best conductor material type. 13. Best insulator material type. 14.The value of a resistor without considering its tolerance value percentages. 15. 1 picoampere (pA) is equal to -polarity electrons or protons stored in a dielectric. ampere (A).

An ohmmeter is used for measuring the resistance of a circuit between its two terminals. What would be the reading of such an instrument used for the circuit at point (a) AB (b) AC and (c) BC? All resistances are in ohm.

consider the following circuit composed of four resistors and an ideal battery. each resistor has a resistance of 2.00 ohms. the battery has a terminal voltage of 30.0V. a.) what is the equivalent resistance of this circuit? b.) what is the equivalent current passing through this circuit? c.) what is the voltage drop across R1? d.) what is the current passing through R2?

1- If we use 5000 μF, we can get a very low ripple voltage. But this is so bad and this a disadvantage, why?   2- What happens if we use a very small resistance (few Ohms) or big resistance (100 kOhms) ?

The current through an element is shown in the figure. Determine the total charge that passed through the element after t = 3 s. Enter your answer in Coulombs to within 5% accuracy. I need to show all work

Design a multirange d.c. milliammeter with a basic meter having a resistance 75 ohm and full scale deflection for the current of 2 mA. The required ranges are 0-10 mA, 0-50 mA and 0-100 mA ??

1. For circuit-1, (Values of all the Resistors are in Ohms). a. Determine the equivalent resistance, RT, of the circuit. b. Find current through all resistors. c. Find voltage drop across all resistors.

Four cells each of 2.10 volt internal emf are parallel connected together to make a battery. The internal resistances are 0.004, 0.005, 0.003 and 0.0025 ohm. Calculate for parallel connections: (a) internal emf and resistance of the single equivalent cell (b) current for a terminal voltage of 1.95 volts, (c)current in each cell