1. A galvanometer has a coil resistance of 70 ohms and can tolerate a maximum current of 45 mA.
    a) What resistor size will convert it to a maximum reading 300 V voltmeter?
    b) Once reconfigured as a voltmeter, how is it then hooked into a circuit?
2. A galvanometer has a coil resistance of 120 ohms and is fully deflected by a 120 mA current.
    a) A resistor of what size will allow it to function as a voltmeter reading a maximum of 370 V?
    b) How is the resistor hooked into the circuitry inside the galvanometer's case to allow it to function
    as a voltmeter?
3. A maximum reading 400 V voltmeter used to be a galvanometer with a coil resistance of 95 ohms.
    a) If the coil could tolerate a maximum current of 105 mA, a resistor of what size was added to
    create the voltmeter?
    b) Explain why the location of the resistor allows the galvanometer to function as a voltmeter.
4. A galvanometer has a coil resistance of 7 ohms and is fully deflected by a potential of 10 mV.
    a) What resistor will convert it into a maximum reading 9 A ammeter?
    b) Once the galvanometer is modified as an ammeter, how is it hooked into a circuit?
5. A galvanometer with a coil resistance of 8 ohms can read a maximum potential of 12 mV.
    a) What resistor is used to reconfigure it as a maximum reading 10 A ammeter?
    b) How is the resistor hooked into the circuitry inside the galvanometer's case to convert it to an
    ammeter?
6. An maximum reading 12 A ammeter used to be a galvanometer with a coil resistance of 14.5 ohms.
    a) If the coil was fully deflected by 11 mV, what size of resistor was added to reconfigure it as an
    ammeter?
    b) Explain why the location of the resistor allows the galvanometer to act as an ammeter.
7. a) A device using 300 W of power in 4.5 minutes has what kilowatt - hour rating?
    b) If Joules = KW x seconds, what is its energy usage in Joules?
8. a) A kettle rated at 450 kilowatt - hours will use of much power in 10 minutes?
    b) How many Joules is it using?
9. What EMF is created by a 0.3 m long wire moving at 2 m/s through a section of a magnetic field
    with a magnetic induction of 2 * 10^-3 Tesla?
10. A 0.5 m long wire would have to move how quickly through a 4.5 * 10-2 Wb/m² magnetic flux
      density to generate 0.7 V?
11. A transformer has 4 primary coil and 7 secondary coil turns.
      a) A 20 A primary current becomes what secondary current?
      b) A 12 V secondary potential was what primary potential?
      c) What are the input and output powers?
12. A transformer has 40 primary coil and 25 secondary coil turns.
      a) A 60 A secondary current was what primary current?
      b) A 30 V primary potential becomes what secondary potential?
13. A 75% efficient transformer carrying a 10 A primary current changes a 20 V primary potential
      into a 70 V secondary potential. Find the secondary current.
14. An 88% efficient transformer changes a 30 V primary current into a 50 A secondary current. If the
      secondary potential is 25 V, find the primary potential.