The switch in Figure Q3(a) has veen n a posIon a for a long time. At t = 0, the switch moves to b. Determine v(t) for t 2 0. 602 t =0 30Ω) 250 50Ω v(t) 47 μF 2A 10 V Figure Q3(a)

Q: (b) For the circuit in Figure 7(b), calculate Zrand Vab. 20 Ω j10 2 o a bo 60/90° V 40 2 -j5 2 ZT…

A: According to question we have to calculate the value of ZT and Vab.

Q: R1 R2 680 N 1.0 kN 10 mA R3 30 V R5 R4 270 N 270 N +

A: Equivalent resistance of the circuit Req=R1+R2+R3+R4+R5Req=680+1000+R3+270+270Req=2220+R3 Ω

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A:

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A: Given- Inductor short circuited Switch closed To find- Value of current i =?

Q: 1 p -j2 Q 8Ω j6 Ω ell 40/30° V 32 10 Ω 5/0° A Determine voltage Vx.

A:

Q: 2) The switch in the Circuit in Figure has been in position 1 for a long time. At t=0 it moves…

A: Step-1->We have the circuit

Q: What is the voltage between nodes A and B in each circuit in Figure 12–73?

A: The voltage across the capacitor can be calculated by using the capacitor reduction techniques and…

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Q: 4. What is the voltage A. 3V B 3V

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Q: R1 Σ 10 ΚΩ R2 Μ HI Vcc = 10 v Rc 1 ΚΩ HI RE 560Ω

A:

Q: A dc source is connected to a series RLC circuit by a switch that closes at t = 0, as shown in…

A: Given:a series RLC circuit with dc source, the switch is closed at t=0. we need to find:a) the…

Q: Given n2 300, what is į? 6430° A 4430° A n1: n2 O 150 O 450 O 200 O 600 all

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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.