Calculate the resistance of a shunt required to convert it for use as a 0–10 A ammeter.

1.The instrument of Exercise 7 is to have a multiplier connected in series with it

 

to convert it for use as a voltmeter to read up to 50 V. What will be the multiplier resistance? 2. A permanent-magnet moving-coil instrument has a resistance of 3 _, but has a 27 swamping resistor connected in series with it. The movement requires a current of 15 mA for full-scale deflection. Calculate the resistance of a shunt required to convert it for use as a 0–10 A ammeter. What will be the resistance of a multiplier to convert the unit for use as a 0–300 V voltmeter if the swamping resistor remains in circuit?

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A rotor-resistance starter for a three-phase wound-rotor induction motor

1. A rotor-resistance starter for a three-phase wound-rotor induction motor   (a) adds external resistance to the wound rotor via sliprings (b) is connected in series with the machine stator….

find the resistance of a resistor, various currents were passed through the resistor and the corresponding voltage drops across it were measured.

1.To find the resistance of a resistor, various currents were passed through the resistor and the corresponding voltage drops across it were measured. The results obtained were   (a) Draw….

To what do you assign the peaks at m/z 64 and 34?

Portable mass spectrometers are now available for monitoring gaseous emissions from volcanoes. Analyses after the eruption of the Turrialba Volcano in Costa Rica in January 2010 showed the presence of….