We know, Rx = (R2/R1)*Radj becuase Ibc = 0 and Vab = Vac, Vbd = VcdPart 3 (Ohms)Radj = 10kR1 = 1kR2 = 4.3k Vs+bR₁RadjaAMdFigure 3- Wheatstone BridgeR₂Rx 3. With V, 10V,calculate the "unknown" resistor R. and thecurrent is (mA) though the voltage source in Figure 3 when the bridge is balanced, usingresistor values R₁, R2, (both in the range of 1k0 to 10kn) and RadjTable B: Figure 3 circuit valuesRadjR₁R₂Rxis (mA)

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Engineering

Electrical Engineering

Vs ↑ +1 b R₁ Radi a AM d Figure 3 – Wheatstone Bridge R₂ Rx

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter18: Resistive-inductive Parallel Circuits

Section: Chapter Questions

Problem 8PP: In an R-L parallel circuit, ET=48 volts, IT=0.25 amps, R=320. Find XL.

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Concept explainers

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.

Question

We know, Rx = (R2/R1)*Radj becuase Ibc = 0 and Vab = Vac, Vbd = Vcd

Part 3 (Ohms)
Radj = 10k
R1 = 1k
R2 = 4.3k

Vs
+
b
R₁
Radj
a
AM
d
Figure 3- Wheatstone Bridge
R₂
Rx

3. With V, 10V,
calculate the "unknown" resistor R. and the
current is (mA) though the voltage source in Figure 3 when the bridge is balanced, using
resistor values R₁, R2, (both in the range of 1k0 to 10kn) and Radj
Table B: Figure 3 circuit values
Radj
R₁
R₂
Rx
is (mA)

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