1. Are any of the following pairs of circuits equivalent? Circle the correct answer. D=D A) YES/ NO D=D B) YES/ NO D=D YES/ NO answer each part and show work please

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A: The solution is given below

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A: Built in voltage given by  Vbi = (kT/q)loge(NaNd/ni2) ni is intrinsic concentration

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A: In the question.    What is the resistance across terminals 'c' and 'f'? Explain   What is the…

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A: Given data V = 50 V R1 = 10 ohms R2 =15 ohms R3 = 25 ohms

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A: We will convert given star to delta then we will find out equivalent resistance.

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A: Equivalent circuit:

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Q: 1. Find the unknown quantities in the circuit shown in Figure 1. V - E - 28 V- V R 12 kn R3 kn 12 k

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A: First we have to check which diode is conducting.

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A: Given,

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Thermistors

A thermistor is a special type of resistor whose resistance is more temperature-dependent than standard resistors.  The resistance of the thermistor decreases with increasing temperature. This is the basic principle of thermistors. This allows the thermistor circuit to detect very small temperature changes that cannot be observed with the Resistance temperature detectors (RTDs) or the thermocouples. Since the resistance of a thermistor is temperature dependent, it can be connected to an electrical circuit to measure body temperature. This high sensitivity to temperature changes makes thermistors very useful for accurately controlling and calibrating temperature measurements. In general, resistance increases with increasing temperature in most metals, but thermistors react negatively.