(c) What device is used to extend the range of a DC voltmeter and how is it connected to the basic meter? (d) Why is it necessary that an ammeter be a low resistance instrument? Why must a voltmeter be a high resistance instrument?

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A:

Q: V = ? (± 3.2 5 2 5 + Vx = 9V

A: given circuit

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Q: 3. Design a sequential circuit specified by Table 6.1, using JK flip-flops. Table 6.1 Present State…

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Q: 4. Solve the equivalent resistance across "x" and "y". X '6Ω 2Ω 4Ω 6Ω ΔΔΔΕ ΣΩ Μ 4Ω 6ΩΣ

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Q: A. B C. D. A = 1, B = 0, C = 0, D = 1 F

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A: Capacitance Measurement Table  Determine : C1 avg.C2 avg.σC1σC2

Q: to a 110V supply. At a temperature of 18°C, the current drawn is 0.575 A. After running the machine…

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Q: 4. Complete the truth table based on the following circuit. A B с N A 0 0 0 0 1 1 1 1 B C 0 0 0 1 1…

A: Given: Find: Complete Truth Table based on the given Circuit= ?

Q: 2. If 750 μA is flowing through 11 k of resistance, what is the voltage drop across the resistor? A.…

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Q: Q.3 When a line-to-ground fault occurs, the current in faulted phase 'a' is 100A. The zero-sequence…

A: Given- Line to ground fault- Current in the faulted phase=100 A, To Find- The zero-sequence current.

Q: 20 T(s) = 5² +65 +144

A:

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Q: A 8-pole dC generator running at 1,200 rpm, and with a flux of 25 m Wb per pole generates 440 V.…

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Q: Question 11 Not yet answered Marked ou stion Previous page step-up transformer, with turns ratio…

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Q: For the 13-kVA, 1540/220-V transformer shown in Figure (2): a) Calculate the full-load voltage…

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Q: For the op-amp shown in the following figure, the voltage gain is equal to---------. 80 ΚΩ Vino 3 ΚΩ

A: The given circuit diagram is shown below:

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Q: (coso) (47) find the Power factor of the following clf. 1 452 in mmmmm 355 T-izon Iter ى-

A: Given:

Q: A self-inductance of 10 mH and its resistance 5 connect to AC source of voltage 200 V, and frequency…

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Q: Q4: A: A string of 3 insulators and the ratio of Ce/C = 0.15, if the string is connected to 3-0 line…

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Q: (coso) (147) find the Power factor of the following ckf. 452 im mmmmm 355 1-3252 I'ver

A:

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Q: Problem 2: Find ¡LOAD through RLOAD using Thevenin's theorem 12 V α we kw Μ 3Ω 6Ω 3 Ω b 50 5Ω www…

A: Solution !!

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Q: . In the transformer shown in the below figure, the inductance measured across the terminal 1 and 2…

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Power Measurement

According to Blondel's theorem, the total power is measured with one less number of wattmeters than the number of wires present in the system. So, a single-phase and two-wire system will require one wattmeter and a single-phase and the three-wire system will require two wattmeters, and a three-phase and the three-wire system will also require two wattmeters and a three-phase and the four-wire system will require three wattmeter devices. The wattmeter is a device that measures power using one voltage and one current input as shown in the above figure. Multiple current or voltage input pair cables are used by many power analyzers and digital storage oscilloscopes (DSOs) for measuring watts, in effect within a single instrument acting as multiple wattmeters. It is possible to measure three-phase and four-wire power with one correctly specified power analyzer.