Ohm's Law Abstract

3 resistors are expected to be 10 ohm according to theory but actual values are dlfferent this is what I observed. The question I posted as a photo. Also the tolerance percentage for this resistors are 5%, if my tolerance is not specified +/- 5% what might be the reasons for the disprepancy? ..

Look at the images shown.  Why can we measure resistance with a pencil drawn on a piece of paper? What is the component/material that is on the pencil that gives a high resistance? With the values given on the images, what are the corresponding color codes (indicate tolerance using a 4-band color code scheme)? If the first value is connected in series with the other value, what is the total resistance? If it’s parallel what is the total resistance? 0.449 mega ohms 102.2 kilo ohms

INSTRUCTIONS: Solve the following problems. Show and COMPLETE solutions. Draw all CIRCUIT DIAGRAMS or the equivalent circuit (dummy circuit) as the case may be. Write your solutions on sheet/s of short bond paper. A battery is to consist of 20 identical cells. The emf of each cell is 1.5 V and the internal resistance is 0.20 ohm. This battery will be used to supply power to a 10 ohm lamp. Determine the current on the lamp if:1. The 20 cells are connected in series 2. The 20 cells are connected in parallel 3. The 20 cells are arranged 5 cells in series in 4 parallel rows.

2)This multiple choice question from MEASUREMENTS INSTRUMENTATIONS course.

rical Circuits Lab. I and R. Use the term "propórtional" and "inverse proportional ", and X2- Give a definition of ohm's law for the three relationships between V, 4 1- Why dose the I-V characteristics pass through the origin? Discussion: also state the conditions for each individual relationship. tes. 3- Can you obtain practically the current passes through any circuit without using the Ammeter? Explain. 4- What is the difference between (P= I*V) and (P-I * R) ? 5- The circuit shown in Fig (1-5), calculates Requ, Vab12, Psupplied and P. consumed across (R4). RI 6- R1 R28.2 R2 (a) Parallel connection (b) Series connection Fig. (1-3) Resistors connection

can someone help me with this problem step by step and explain the concepts

Two batteries of nominal voltage 12 V are connected to a charger as shown in the figure below. The charger has an open-circuit voltage of 14 V and an internal resistance of 1.2 ohms. Before being placed on charge one battery (A) has an open circuit voltage (OCV) of 12.1 V and an internal resistance of 0.1 Ohms; the other battery (B) has an open circuit voltage of 11.9 V and an internal resistance of 0.15 Ohms. At the end of the charging period the OCV of battery (A) rises to 12.6 V, and the OCV of battery (B) rises to 12.5 V. Assuming that the internal resistances of the batteries do not change during charging, and that batteries and charger can be represented by linear voltage sources, determine: the final charging currents flowing through Battery B. Enter your answer in Amps (no sign) I need to show all work step by step

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. Find the percentage of voltage loss of the battery due to the internal resistance R1.

For the circuit shown below, assume Vs=5V. All LED's have a turn on voltage of 2V. Ideal current through each LED is 18mA. If current exceeds 20mA, there is a 50% chance of fail, and if the power absorbed by the resistor is greater than 250mW, there is a 20% chance of failure.  Resistance value must be selected from the table shown below and must ensure all requirements are met. a) Does this circuit work? b) What is the power consumption of each LED and the resistor?

(III) Two 9.4-k2 resistors are placed in series and connected to a battery. A voltmeter of sensitivity 1000 N/V is on the 3.0-V scale and reads 1.9 V when placed across either resistor. What is the emf of the battery? (Ignore its internal resistance.)

(b) A student sets up an electric circuit like the one shown in Figure Q1(b). i) Describe how a student would measure the current and voltage value for each component in the circuit in a laboratory. ii) By using nodal analysis method determine the value of current and voltage across the 42 resistor? iii) From the result obtained in Q1(b)(ii) please do explain why. 5V 6A 6A A Figure Q1(b) |

39. You and your lab partner have built the circuit shown in Figure 1.56. The three resistors, R1, R2 and R3 all have resistances of 1 k2, while the two voltage sources have 5 V and 3 V (as shown). The circuit has two output terminals, A and B. Answer the following questions about the circuit. (NOTE: The orientation of the voltage sources is important.) (a) What is the voltage drop across R1 R2 R3 A 5 V 3 V B Figure 1.56: The circuit for problem 39. R3? (b) What is the current flowing through R1? (c) Sketch the Thévenin equivalent circuit as seen looking into the terminals A and B. What is the Thévenin voltage, Vth, of the circuit? (d) What is the power supplied by the two voltage sources? (e) In order to safely determine the Thévenin resistance of your circuit, you connect a fourth resistor, R4 = 1 k2, between A and B. Using your trusty yellow DVM, you measure a potential difference across R4 to be 0.4 V. Using %3D

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…

Subject:Circuits INote:Support the problems with circuit diagram and label the pertinent partsPlease with full solution

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please answer quikly

The circuit displayed below is comprised of resistors, a battery,  capacitors and a single pole double throwswitch (SPDT). When switch is in the position of A, the battery is connected to the circuit. When the switch is in the position of B, the battery is then replaced with a wire. In the beginning, the switch is open, and all capacitors are firstly uncharged. The switch is then flipped in the position of A, so the battery is in the circuit. Then, 30.0 seconds after the switch is then submitted to the position of A, what will the potential difference be beyond C3?

Question 3: A reference current of 0.3mA is given. Make a current mirror circuit which provide currents of 0.2mA and 0.3mA.

Question 3 (a) Briefly explain what is the per-unit systero. (b) A resistance of 60n is selected as the base resistance in a circuit consists of three resistors. If R, =1002, R, =30002 and %3D R, = 200 calculate the per-unit vahue of each resistance. %3D (c) A power of, P-25KW and a voltage of, E-2400V are selected as the base power and base voltage of a power system respectively. Calculate the value of the base impedance, Z, and the base current, I,. (d) A resistor bas a per-nnit value of 5.3. Given the base power is P=250KW, and the base voltage is E,-12470V, calculate the ohmic value (actual value) of the resistor. (e) A 4000 resistor caries a cucrent of 60A. Given the base valne of voltage, E, 4KV, the base value of power, P, 500KTF, the base value of current, I, =125.4, and the base value of resistor, 2, = 320 calculate the following: i The per-unit resistance. ii. The per-unit current. ii. The per-unit voltage across the resistor. iv. The per-unit power.

Can you fill this table with the data in the given?

1-1.1 A six-cell storage battery having a nominal terminal voltage of 12 V is connected in series with an ammeter and a resistor labeled 6 S2. PROBLEMS 39 a) List as many random quantities as you can for this circuit. b) If the battery voltage can have any value between 10.5 and 12.5, the resistor can have any value within 5% of its marked value, and the ammeter reads within 2% of the true current, find the range of possible ammeter readings. Neglect ammeter resistance. c) List any nonrandom quantities you can for this circuit.

DISCUSSION:- 1. From procedure (A), draw the relation between the practical current (I) and resistance (R) in graph paper. Then show this relation is directly or inversely proportional? 2. From procedure (B), draw the relation between the practical current (I) and voltage (V) in graph paper. Calculate the value of R from this graph. Then show this relation is directly or inversely proportional ? 3. 3. What is the potential voltage drop (V) across a resistor (R) 60 if the current(I) 2.5A ? 4. 4. What is the current (I) passing through a 72 Q resistor (R) if voltage drop (V) across it is 12 V ? 5. 5. How much resistance (R) is required to limit the current (I) to 0.76A if the potential drop (V) across the resistance(R)it is 120V ?

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The voltage difference between points a and b in the circuit below is provided by a battery that has a voltage Vab = 24 volts. (The battery is not in the picture.) Find the current across R. The individual resistances are R₁ = 2.00, R₂ = 4.00, R3 = 3.0 Q. R4 = 1.0 Q, and R5 = 5.0 0. a O a. 0.70 A O b. 1.3 A OC. 0.40 A O d. 1.6 A O e. 1.0 A ww R₁ R₂ ww 2 www Rs www RA R₁ ww

Consider a circuit with two unequal resistances in parallel, then. Select one: O a. current is same in both O b. large current flows in large resistor O c. potential difference across each is same O d. smaller resistance has smaller conductance

Determine the nodes/junctions, Current (I), Loops, Voltage drop on each Resistor (R), and Power (P) on each Resistor (R) with the following given and illustration: Use the following given for batteries and resistors (color bands for your value of resistors, use the lower limit).  R1 = red red black goldR2 = orange green black silverR3 = white orange black goldR4 = green violet brown goldR5 = violet red black silverR6 = yellow green black silverR7 = brown black black gold V1 (lower left) = 100VV2 (top center) = 150VV3 (lower right) = 200V

A circuit consist of three resistors with R1 20 resistance R2 30 and R3 50 and 125V battery connected and an emf source. Find out the (1) equivalent resistance, (2) the current across each resistor, (3) potential drop across each resistor and (4) the power dissipated in each resistor.

voltage across R has to be measured with a voltmeter. What percentage error is expected in measuring the voltage if R₁=R₂=R3=R₂=R-100 Q for meter resistance of 1500 Q and 15000 Q. Also calculate the percentage error in measuring the current through R, if the ammeter resistance is 15 and 1.5 Q. Assume Eo, lo as true value and Em, Im as measured value. 10: F 20 20 I' R₁ R₂ R3 ARA A Rg J B 1500022 ģiseen 15000