2. A three phase delta connected balanced resistive load is connected to a three phase delta connected supply. Phase voltage rms value is 240V and frequency is 50 Hz. Load resistance is 120 ohm at each phase. a) Calculate the phase and line currents of the load. b) Calculate the total powertransferred to the load. c) Calculate the energy consumed at the load for one week continuous operation.

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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.