A PMMC instrument has internal resistance of 0.66 kn and gives full scale deflection for 30 mA. The required resistance value of multiplier resistors for employing the meter as a multi range voltmeter for voltage range 57 V will be ohms. O 86333.64 O 189.34 O 1240.00 O -133.68

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Electrical Heating Unit

The conversion of electrical energy to heat energy is known as electric heating. The heating system that converts the electrical energy to heat energy for various application is called electrical heating unit. Electricity is employed as the firing mechanism in electric heating systems, which transforms electric current to heat. Electric heaters have heating elements in the form of electric resistors.