2K R1 RS R7 R10 3K 7K 10K R4 R11 R12 12K 4K BK RS SK R9 OK R14 14K R13 13K R1 R1 R1 R1 R1 R1 R2 R3 R4 R5 R6 R7 R8 R9 2 4. VOLTAGE CURRENT RESISTANC E POWER 1K 2K 3k 4K 5k 6k 7k 8k 9k 10k 11k 12k 13k 14k

Q: PR1 D1 A 1 + V1 R1 Vo 100V 20002

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Q: Using a diagram explain the difference between a common source amplifier and common gate amplifier?

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Q: ree-phase lines: • Load 1: Delta-connected, 500KVA at 0.85 lagging Load 2: Wye-connected, 75KVA at u...

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Q: For the given circuit, what is the magnitude of the current? 10a 5V 2. 100UF 60HZ O 177mA

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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.