EXTRA CREDIT

All the lamps from Lamp #1 to Lamp #7 are designed to work with a nominal Voltage Vlamp of 120V and their resistance Rlamp is constant and do not depends on the temperature. Using this information solve the questions below. The Channel 2 has four lamp connected as shown in the Figure 2 and again you want to be sure that will not be a black-out in the middle of the performance. Please determine if the Channel 1 can work using the variable ALPHA from 0% to 100%. Yes/No, justify your answer with your calculations. No justifications – No points

A secondary cell having an end of 2v and internal resistance of 1amp is connected on series with a primary cell having an end of 1.5v and internal resistance of 100amp, the negative terminal of each cell being connected to the positive terminal of the other cell . A voltmeter having a resistance of 50amp is connected to measure the terminal voltage of the cells. Calculate the voltmeter reading and the current in each cell.

The images are attached with the question and circuit. Please include a drawing with the solution. Thank you

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A 15 ohm and 35-ohm resistors are in series and connected across a 10-volt battery. Find the voltage across the 35-ohm resistor.

For a combined circuit digram, what should we do first? what will happen to the resistance? what will happen to the voltage? what will happen to the current? Please give an explanation to a combined circuit diagram.

A lead wire and an iron wire are connected in parallel. Their respective specific resistances are in the ratio 49: 24. The former carries 80 percent more current than the latter and the latter is 47 percent longer than the former. Determine the ratio of their cross sectional areas ROUND OFF TO THE NEAREST HUNDRETHS

What is the equivalent resistance in the following?

Which of the following is/are an accurate statement/s? A The potential in any closed loop is zero. B In parallel connection of two resistors, the current is higher for lower resistance. The voltage divider is used to find the potential across the resistors in parallel. The sum of current entering the junction is equal to the sum of potential in any closed loop.

If you wanted to measure the voltage of a resistor with a voltmeter, would you introduce the voltmeter to be in series or in parallel to that resistor? Explain. What about for an ammeter?

How to reduce a simple series-parallel resistance circuit to a single equivalent resistance, and compute the voltage drops across and the currents through each resistance in the circuit?

what is the Definition of electrical series circuits and Definition of electrical parallel circuits ?

Draw a circuit diagram in which R1 and R2 are in series with each other but collectively R1 and R2 are in parallel with R3. Label each.

Parallel Circuits Review In a Parallel circuit, the Voltage across each cell is the same, while the total current is equal to sum of the currents in each resistor. In a series circuits, the total voltage is equal the sum of the voltages across each resistor. The current, however is the same for each resistor, 1. The circuit shown in the diagram consists of two resistors connected in parallel to a cell. The value of Itotal is equal to 30 A. What is the value of V(2)? 50 -ww www 2. The circuit shown in the diagram consists of two resistors connected in parallel to a cell. The value of the current given by the second ammeter, / is 3 A. What is the value of I (total)? 3. A student sets up the circuit shown in the diagram. The value of Itotal is 8 A and the value of I is 6 A. w www a). What is the value of /(2)? b). What is the potential difference supplied by the cell the circuit?

Two resistances of 10 and 15 ohms, each respectively are connected in parallel. The two are then connected in series with a 5-ohm resistance. It is then connected across a 12-V battery, what are the total resistance, current and power?

Two batteries are connected in parallel delivering power to a power resistor. The first battery has an open circuit voltage of 12.6 V and an internal resistance of 0.2 ohm. The second battery has an open circuit voltage of 12.2 V and an internal resistance of 0.3 ohm. Find the maximum power delivered to the load resistance.

If two resistors are connected in parallel and R1 is shorted, what are the current and voltage in R2? Explain If two resistors are connected in parallel and R1 is open, what are the current and voltage in R2? Explain Which has more excellent equivalent resistance, those resistors in parallel or those in series? Explain

INSTRUCTION: Connect two resistors (R1  and R2 in parallel and then in series, then find the resistance. -Resistance of the resistors could not be measured on the UT33B multimeter, so the voltage and current were measured and the resistance was found using ohms law. RESISTOR 1 and 2 in series - Voltage across the series arrangement of resistors is measured to be  1.524 V, The scale used to measure voltage is 2000mV on the UT33B multimeter. - Current across the series arrangement of resistors is measured to be 0.04 A, The scale used to measure current is 10 A on the UT33B multimeter. RESISTOR 1 and 2 in a parallel - Voltage across the parallel arrangement of resistors is measured to be  1.568 V, The scale used to measure voltage is 2000mV on the UT33B multimeter. - Current across the parallel arrangement of resistors is measured to be 0.15 A, The scale used to measure current is 10 A on the UT33B multimeter. i) Compare the theoretical effective resistance using the nominal values in…

To measure the change in resistance of the gage(s) and indicate the location of the gauge on the beam, construct the Wheatstone bridge circuit. Calculate the Wheatstone bridge output if the gauge indicates a strain of 4000.then,Evaluate how can the number of strain gauges affects your measurement result. Justify your response with a calculation and a diagram showing the gage's placement on the beam.

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Resistors A, B, and C are in series with a 100-V source. The total voltage drop across A and B is 50 V, and that across B, and C, is 80 V. Find the three resistances if the total resistance is 50 ohms.