Lab 11 Electric Circuits

How about solving this using KCL equations? Thank you

What is the definition of electrical resistance? What is an “ohmic” resistance? Are all resistance ohmic in nature?

b) Describe the traces you would see on an oscilloscope monitoring voltage changes across a resistance which has: - AC flowing through it - DC flowing through it You should include diagrams to support your descriptions for each trace.

(A) Explain the difference between series and parallel resistor circuits in terms of (1) the physical connections (2) current & voltage flow. (B) What are the characteristics of a material that obeys ohms law?

For the circuit below, determine the resistor voltage. The source is 6 volts, the Zener potential is 5.1 volts and the resistor is 1k.

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

How temperature effect conductivity? Explain with the help of following equation. m e'n7'

A. Using long coupon bond(s), make a written discussion of what you learned in this lesson. Your discussion includes but not limited to the following: 1. Electric current, direct and alternating current, average current 2. Emf, dependent and independent sources 3. Conductance and conductivity 4. Resistance and resistivity 5. Percent conductivity 6. D-c measurements of voltage, current, resistance B. Calculate the resistivity and percent conductivity of the elements and alloys listec in the table below. 1. Resistivity Elements Ohm-cm Ohm-meter Alloys Ohm-cm Ohm-meter Brass Silver German silver Copper, Manganin Copper, Lucero Gold, pure Advance Aluminum Constantan Magnesium Excello Tungsten Nichrome Zinc Nichrome II Nickel Chromel Iron, cast Platinum Iron, Lead

Q1. Explain about the following electric wiring circuits and compare their advantages and disadvantages. • RING CIRCUITS • RADIAL CIRCUITS • LIGHTING CIRCUITS

What is an integrated circuit and how is it used in electrical engineering?

Pls i need the answer of this questions

Mid-term exam Principles of Electricity (cont'd) 11. According to Ohm's Law, electron flow is proportional to electrical pressure. a. Inversely b. Indirectly c. Directly d. Not 12. What equation represents the characteristics of electron flow in a parallel circuit? a. E=IxR b. ET=E1=E2=E3... c. IT=l1+l2+l3... d. ET=E1+E2+E3... 13. What equation represents the characteristics of electrical pressure in a parallel circuit? a. E=IxR b. ET=E1=E2=E3... c. IT=l1+l2+l3... d. ET=E1+E2+E3.. 14. How much electrical pressure would be required to produce 25A current in a circuit with 19.20 total resistance? a. 480A b. 480V C. 1.3V d. 0.768V 15. As resistors are removed from a series circuit, what will happen to the current? a. The current will increase b. The current will decrease c. The current will stay the same d. There is not enough information given

Two electrical elements are connected in series. What can you say about the currents through the elements?

A series circuit is set up with an AA battery along with an mystery material and ammeter; however, there’s no current passing through. A.Insulator B.Conductor C.Semiconductor

The resistance of wire increases from 40 – ohm at 20 0C to 50 – ohm at 70 0C. Find the temperature coefficient of resistance at 0 0C.

a) Find and explain the Ohm conservation expression.b) Stable current circulation is desired for the lamp connected in a circuit to light. Accordingly, discuss with the conservation law of the charge how a stable current circulation can occur from any part of the circuit.I need to explain the answers to these questions, please can you explain in detail. Thanks in advance.

The subject is basic electrical engineering

Give a detailed description of an expirment about 'D'Arsonval Meter Movement as DC ammeter'.Support your answer with pictures and examples.

Which of the following is NOT a variable in voltametric methods? A. How the current is applied B. How the potential is applied C. The inclusion of convection D. All the above     E. Type of working electrode

1- A). Which of the following could be used as a discharge device in an inductive AC circuit? a) resistor b) diode c) metal oxide varistor d) "a" and "c", not "b" B. What is the purpose of a discharge device used in conjunction with opening a highly inductive circuit? a) to minimize the possibility of damage to the circuits insulation as a result of a high induced voltage b) to minimize the possibility of endangering the life of the person opening the controlling switch c) to allow the magnetic field to gradually collapse, thus limiting the value of the self-induced ernf d) all of the above C. The high voltage induced by an inductor when its circuit is opened could be used constructively for a) an automotive ignition system b) an electric fence c) both "a" and "b" d) neither "a" nor "b"

4. It is desired to operate a 100-W, 120-V electric lamp at its current rating from a 240-V, 50 Hz supply. Give details of the simplest manner in which this could be done using (a) resistor (b) capacitor and (c) an inductor having a resistance of 10 ohms. What power factor would be presented to the supply in each case and which method is the most economical of power.

Full explanation please

Multiple Choices: Choose the BEST answer for each item. It states that the total current directed into a junction must be equal the total current directed out of the junction. Loop rule Junction rule     c. Resistance           d. Capacitance It happens when the direction of the current is directed towards a higher potential region to a lower potential region. Voltage drop Voltage rise       c. Current drop    d. Current rise It is necessarily to find ______ of current to solve the circuit according to the Kirchhoff’s Laws. value direction           c. symbol              d. speed In any closed path of a system the algebraic sum of IR is equal to the E.M.F of same path.   True False                 c. either a or b        d. none of these In any system, the algebra sum of the currents meeting at a junction point is zero, which is stated in Kirchhoff’s Current Law.   True False                 c. either a or b        d. none of these

Please answer the following: a) What is the resistance in the circuit? b) What is the reading in milliamperes of the ammeter?

3. Is it possible to an element to have zero voltage but a current is not zero? Or an element current but there is a non-zero voltage across it? Explain.

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

Ferromagnetic materials have this characteristic.    A. A relative permeability slightly less than one.   B. A relative permeability slightly greater than one.   C. A very high resistivity.    D. A high relative permeability.

Considering that the power loss of a resistor is  and the information in the manual’s background section, derive an expression for the energy lost through Joule heating in a resistor when a capacitor completely discharges

Name the following figure

An ideal battery of terminal voltage 22 volts charges two practical batteries connected in parallel to each other. The parallel connection of the said practical batteries is connected across the ideal battery. The two practical batteries have the following specifications: 10 volts, 0.2 ohm; 8 volts, 0.5 ohm. Determine the total current being delivered by the source.

Plz solve I will definitely upvote

One of the methods of charging materials wherein the transfer of charges is due to the contact between two materials and depends also on the nature of the materials.     Select one: a. charging by conduction b. charging by friction c. charging by induction d. charging by grounding

A linear resistance potentiometer is 50 mm long and is uniformly wound with wire having a resistance of 10000 ohm. Under normal conditions, the slider is at the centre of the potentiometer. Find the linear displacement when the resistance of the potentiometer as measured by a Wheatstone bridge for two cases is (1) 3520 ohm (2) 8250 ohm .